Adekoya, L. O., and W. F. Buchele.(1987). A precision punch planter for use in tilled and untilled soils. J. Agric. Eng. Res. 37:171-8.
Adisa A.F. (1980). Design and Construction of a Manualy Operated Planter. Unpublished B.Eng. Thesis, Ahmadu Bello University, Zaria, Nigeria.
Bamgboye, A.I and Mofolasayo, A.S (2006). “Performance Evaluation of a Two-Row Okra Planter”. Agricultural Engineering International: the CIGR Ejamal. Manuscript PM 06002. Vol.viii. July.
Braide F.G. and S.M. Njidda. (1989). Design and Construction of a Combined Jab Planter, Proceedings of Nigerian Society of Agricultural Engineers (13).
Hilary F. R.and F. Gary (1995). Microcatchment Water harvesting for agricultural production: Part I: Physical and technical considerations. J. Ranglands, 17 (3): 72-78.
Kachman, S. D., and J. A. Smith. (1995). Alternative measures of accuracy in plant spacing for planters using single seed metering. Transactions of the ASAE 38(2):379-387.
Kepner, R.A; Bainer, R. and Barger, E.L. (1978). Principles of farm machinery. 3rd Edition. West port. G; AVI publishing company Inc.
Klute, A. (ed.) (1986). Methods of Soil Analysis. Part 1. Physical and Minerological Properties. Am. Soc. Agron. Inc., Agronomy Series 9. USA. 1173 pp.
Mehta, M.L.; Verma, S. R. Misra, S.K. and Sharma, V.K. (1995). Testing and Evaluation of Agricultural Machinery. National Agricultural Technology Information Centre, India. Pp 68 – 79.
Molin, J.P. and Dagostine, V. (1996). Development of a rolling punch planter for stony soil conditions” Agricultural mechanization in Asia, Africa and Latin America. Vol.27, No3, pp17-19.
Morrison Jr., J. E., and R. R. Allen. (1987). Planter and drill requirements for soil with surface residues. Paper presented at the Southern Region No-tillage Conf. on Conservation Tillage, Misc-Pub-MP-Agri-Exp-Stn (1636): 44-58. College Station.
Nadia, I. and M. Pavia (2007). Rain water harvesting technologies for Small scale rainfed agriculture in arid and semi-arid areas, Integrated water resources management for improved rural livelihoods, CGIAR challenge program on water and food.
Robert, G.; H. David and P. Robert (2009). Equipment Considerations for No-till Soybean Seeding. Virginia Cooperative Extension Programs. publication 442-456.
Rogers, B., and R. Baron. (1987). Cereal punch seeder; true zero till seeding. ASAE Paper No. 87-1615. St. Joseph, Mich.: ASAE.
Rolando, P.J., Delaraga, L.V., Alegato, O.R. (2011). Development of a manually operated Disc- type corn seeder. Northwestern University, Laoag City 2900, Philippines, Mariano Marcos State University, Batac, Ilocos Norte 2906, Philippines.
Shaw, L. N., and K. H. Kromer. (1989). A punch planter for vegetables on plastic mulch covered beds. In Proc. 11th Intnl. Congress Agric. Engineering, Vol. 3, Agricultural Mechanization, 1711-1715. Dublin Ireland. Rotterdam, The Netherlands: A. A. Balkema.
Srivastava, A. K., and M. E. Anibal. (1981). A punch planter for conservation tillage. ASAE Paper No. 81-1020. St. Joseph, Mich.: ASAE.
Steel, R. G. D., and J. H. Torrie. (1980). Principles and Procedures of Statistics. McGraw-Hill, New York.
Wohab, M.A. (2003). Design and development of a power tiller operated minimum tillage seeder. MS thesis. Department of Farm Power and Machinery, Bangladesh Agricultural University, Mymensingh, Bangladesh.