D, Ogisi O’raye, Chukwuji Christopher O, and Okeke Daniel C. “Efficiency of Resource Use by Rice Farmers in Ebonyi State, South East Nigeria: A Data Envelopment Analysis”. Asian Journal of Agriculture and Rural Development 2, no. 2 (June 26, 2012): 149–154. Accessed May 2, 2024. http://archive.aessweb.com/index.php/5005/article/view/518.