Sapruwan, Muhammad. “DEVELOPMENT MODEL OF ADMINISTRATOR COMPETENCE STANDARD OF OIL PALM PLANTATION”. IJER - INDONESIAN JOURNAL OF EDUCATIONAL REVIEW 3, no. 1 (May 8, 2017): 61–69. Accessed November 24, 2024. https://journal.unj.ac.id/unj/index.php/ijer/article/view/1201.