ASM Golam Hafeez; Md Abdullah A Kafi; Md Rezaul Karim; Shamim Ahamed; Mehdee Mohay Men Ur Rahman. Technical Efficiency of Early Variety Country Bean Cultivation in Selected Areas of Bangladesh: A Stochastic Frontier Approach. Res. Agric. Livest. Fish. 2023, 10, 155-164.