Indah, S. P., Hermansyah, H., Hasanudin, H. and Marwanto, M. (2018) “Effect of Oil-Palm-Empty-Fruit-Bunch Granular Organic Fertilizer on The Yield 0f Oil Palm Fruit”, Akta Agrosia, 20(2), pp. 61–65. doi: 10.31186/aa.20.2.61-65.