Situmeang, Yohanes Parlindungan, I Made Adnyana, I Nengah Netera Subadiyasa, and I Nyoman Merit. “Effectiveness of Bamboo Biochar Combined With Compost and NPK Fertilizer to Improved Soil Quality and Corn Yield”. International Journal on Advanced Science, Engineering and Information Technology 8, no. 5 (October 31, 2018): 2241–2248. Accessed December 11, 2024. https://ijaseit.insightsociety.org/index.php/ijaseit/article/view/2179.