“A Study on Resource Use Efficiency of Agricultural Input Factors With Reference to Farm Size in Three Revenue Mandals of Nellore District : Andhra Pradesh”. Global Journal of Management and Business Research 14, no. E5 (March 15, 2014): 13–21. Accessed February 15, 2026. https://journalofbusiness.org/index.php/GJMBR/article/view/1549.