Faiz, C. A., & Sulistyono, N. B. E. (2019). Pemberian H2SO4 dan Ekstrak Bawang Merah Terhadap Uji Vigor Benih Kopi Robusta (Coffea robustaL.). Agriprima : Journal of Applied Agricultural Sciences, 3(1), 71–80. https://doi.org/10.25047/agriprima.v3i1.101