Harefa, K. O. K., H. P. Zebua, D. A. S. Laia, and P. H. Telaumbanua. “Effect of Liquid Organic Fertilizer Based on Cocoa Peel Waste on White Eggplant Production (Solanum) Melongena L.) in The Village Niko’otano Dao Gunungsitoli Alo’oa District”. Contributions of Central Research Institute for Agriculture, vol. 20, no. 4, Oct. 2026, pp. 293-8, doi:10.59651/cceria.v20i4.487.