DS Susilowati, Kartika, Asminah Rachmi, and Nur Indah Riwajanti. 2018. “Analysis of Contract Farming Partnership for Sustainable Supply of Tobacco (a Case Study on the Integrated Production System Program of PT. HM Sampoerna Tbk. - Indonesia)”. International Journal of Engineering & Technology 7 (4.15): 219-23. https://doi.org/10.14419/ijet.v7i4.15.22993.