[1]
F. S. H. Harahap, H. . Walida, D. A. . Harahap, R. . Oesman, and W. . Fadhillah, “Response of Growth and Production of Corn (Zea Mays L) with Liquid Fertilizer in Labuhan Batu Regency”, Petrop, vol. 6, no. 3, pp. 363- 370, Dec. 2019.