Hakim, Arif Rahman, Liliek Dwi Soelaksini, and Muqwin Asyim RA. “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 2, no. 1 (March 24, 2018): 44–54. Accessed October 24, 2021. https://agriprima.polije.ac.id/index.php/journal/article/view/v2i1-f.