V. Oktavia, H. Pujisiswanto, A. Edy, and T. D. Andalasari, “Response of Growth and Results of Sweet Corn Plants (Zea mays Saccharata Sturt.) To the Effect of Dosage and Time of Fertilizing Bio-slurry Liquid Fertilizers”, JPPT, vol. 18, no. 2, pp. 128-136, May 2018.