[1]
Tambun, Yosef Manik, R. 2020. Value Chain Analysis of Cassava (Manihot Esculeta) in Toba Samosir Regency, North Sumatera, Indonesia. Journal of Engineering and Scientific Research. 2, 1 (Jun. 2020), 39–43. DOI:https://doi.org/10.23960/jesr.v2i1.41.