Cooperation Model of “Tampan”(dividing profit based on the agreement) and “Ounce” (cooperation model based on the ounce scale in the Coconut Sugar Production: The Study of Coconut Sugar Produsen in Karang BendoVillage Ponggok District Blitar Regency. JOSAR (Journal of Students Academic Research), [S. l.], v. 4, n. 1, p. 72–83, 2019. DOI: 10.35457/josar.v4i1.749. Disponível em: https://ejournal.unisbablitar.ac.id/index.php/josar/article/view/749. Acesso em: 31 jan. 2026.