Bajracharya M, Sapkota M. Technical efficiency of certified maize seed in Palpa district, Nepal: A stochastic frontier production approach. J. Maize Res. & Dev. [Internet]. 2018 Jan. 5 [cited 2024 Nov. 21];3(1):45-52. Available from: https://nepjol.info/index.php/JMRD/article/view/18920