1。Tenancy Inefficiency: A Study Based on West Bengal Agriculture
Manabendu Chattopadhyay and Atanu Sengupta Economic and Political Weekly, Vol. 36, No. 5/6 (Feb. 3-16, 2001), pp. 497-502
(article consists of 6 pages)
Published by: Economic and Political Weekly
Stable URL: http://www.jstor.org/stable/4410265

2。Economies of size in sugar cane production in KwaZulu-Natal
Swaibu Mbowa; Lieb W. Nieuwoudt
Development Southern Africa, 1470-3637, Volume 15, Issue 3, 1998, Pages 399 – 412
http://www.informaworld.com/smpp/ftinterface?content=a790991991&rt=0&format=pdf

3。Non-Farm Activity and Production Efficiency of Farm Households in Egbeda Local Government Area, Oyo State
O. A. Oni;  A. A. Akinseinde; A. A. Adepoju
Journal of New Seeds, 1522-9025, Volume 10, Issue 1, 2009, Pages 1 – 13
http://www.informaworld.com/smpp/content~content=a909572725~db=all~jumptype=rss