Taufan, A. and Ira Susanti 2022. Role Of Cooperative Units Of Sungai Source Of Sustenance Village In Helping The Economy Of Oil Palm Farmers In Sungai Putih Village In 2022 (Case Study Of Sungai Putih Village Community). Enrichment : Journal of Management. 12, 4 (Oct. 2022), 3324-3334.