Puspita, Yolanda Dewi, dan Dyah Nuning Erawati. “Konsentrasi Dan Lama Perendaman H2SO4 Terhadap Percepatan Perkecambahan Benih Kopi Arabika (Coffea Arabica L.) Var. S795”. Agropross : National Conference Proceedings of Agriculture 3 (September 20, 2019): 107–113. Diakses Juli 3, 2024. https://proceedings.polije.ac.id/index.php/agropross/article/view/526.