Rustan R, Dwi Ramadhan F, Afrianto MF, Handayani L, Puji Lestari A, Manin F. PERANCANGAN ALAT PENGUKUR KADAR UNSUR HARA NPK PUPUK KOMPOS. JoP [Internet]. 2022Nov.22 [cited 2024Nov.20];8(1):55-60. Available from: https://mail.online-journal.unja.ac.id/jop/article/view/20838