Kaka, Yahaya, Mad Nasir Shamsudin, Alias Radam, and Ismail Abd Latif. 2016. “Profit Efficiency Among Paddy Farmers: A Cobb-Douglas Stochastic Frontier Production Function Analysis”. Journal of Asian Scientific Research 6 (4):66-75. https://doi.org/10.18488/journal.2/2016.6.4/2.4.66.75.