Tufaila, M., Safiuddin, L. O., Eso, R., Kasmiati, S., Syaf, H., Nur Ramadhan, L. O. A., Hasrorayan, ., & Ardin, . (2016). Variation of Chemical Elements and their Associations in Laterite Soil Profile. JOURNAL OF TROPICAL SOILS, 20(2), 111–118. https://doi.org/10.5400/jts.2015.v20i2.111-118