RUDI HARTONO. The Economic Impact Of The Presence Of Oil Palm Plantations Towards ISPO Certification: Case Study Of Jaya Usaha Sempurna Producer Cooperative In Mega Timur Village. International Journal of Management and Business Economics, [S. l.], v. 3, n. 2, p. 66–69, 2025. DOI: 10.58540/ijmebe.v3i2.737. Disponível em: https://putrapublisher.org/ojs/index.php/jamis/article/view/737. Acesso em: 21 apr. 2026.