Sofyan, E. T., & Sara, D. S. (2019). The Effect of Organic and Inorganic Fertilizer Applications on N, P and K Uptake and Yield of Sweet Corn (Zea mays saccharata Sturt). JOURNAL OF TROPICAL SOILS, 23(3), 111–116. https://doi.org/10.5400/jts.2018.v23i3.111-116