EFFECT OF ALUMINUM ON PLANT GROWTH, PHOSPORUS AND CALCIUM UPTAKE OF TROPICAL RICE (Oryza sativa), MAIZE (Zea mays), AND SOYBEAN (Glycine max). (2018). Indonesian Journal of Agricultural Science, 1(2), 51-62. https://epublikasi.pertanian.go.id/berkala/ijas/article/view/352