Njiku, Anastasia R., and Ganka D. Nyamsogoro. 2018. “Determinants of Technical Efficiency of Small Scale Sunflower Oil Processing Firms in Tanzania: One Stage Stochastic Frontier Approach”. Asian Journal of Economics and Empirical Research 5 (1):79-86. https://doi.org/10.20448/journal.501.2018.51.79.86.