Hervidea, R., Zulkifli, Z., & Lande, M. L. (2017). Effect of Citric Acid, Aluminum and It’s Interaction in The Seedling Growth of Soybean (Glycine max L.) Varietas Anjasmoro. Jurnal Penelitian Pertanian Terapan, 16(3). https://doi.org/10.25181/jppt.v16i3.46