Hossain, Md. Moyazzem, and Ajit Kumar Majumder. “On Measurement of Efficiency of Cobb-Douglas Production Function With Additive and Multiplicative Errors”. Statistics, Optimization & Information Computing 3, no. 1 (February 21, 2015): 96-104. Accessed April 19, 2024. http://iapress.org/index.php/soic/article/view/20150308.