MANURUNG, Hamzah; HAFIZHAH RISNAFITRI; AYU PRATIWI, Erinka; MANURUNG, Syifa Az Zahra. THE DYNAMICS OF PRODUCTION COSTS AND VARIANCE PERFORMANCE IN THE OIL PALM INDUSTRY IMPLICATIONS FOR OPERATIONAL SUSTAINABILITY. International Journal of Economic, Business, Accounting, Agriculture Management and Sharia Administration (IJEBAS), [S. l.], v. 5, n. 6, p. 3138–3142, 2026. DOI: 10.54443/ijebas.v5i6.5022. Disponível em: https://radjapublika.com/index.php/IJEBAS/article/view/5022. Acesso em: 7 feb. 2026.