Rianawati, Rianawati. “Saprahan: Mutual Cooperation Value in Local Wisdom of Seranggam Village of Sambas Regency, Indonesia”. Opción 350 (August 3, 2019): 1095-123. Accessed October 31, 2025. https://produccioncientifica.luz.edu.ve/index.php/opcion/article/view/31927.