HAKIM, A. R.; SOELAKSINI, L. D.; ASYIM RA, M. Suplai Dosis P dan K Terhadap Laju Pertumbuhan dan Produksi Tanaman Ubi Jalar (Ipomea batatas L.) Varietas Antin 3. Agriprima : Journal of Applied Agricultural Sciences, Jember, ID, v. 2, n. 1, p. 44–54, 2018. DOI: 10.25047/agriprima.v2i1.78. Disponível em: https://agriprima.polije.ac.id/index.php/journal/article/view/v2i1-f. Acesso em: 24 oct. 2021.