Fitriah, Fitra, and Sitti Saleha. “Effect of Fermentation Duration on the Carbon-to-Nitrogen (C N) Ratio of Liquid Organic Fertilizer Produced from Dami Jackfruit Waste Using Coconut Husk-Based Bioactivator”. Cognitia : International Engineering Journal, vol. 1, no. 1, Apr. 2025, pp. 18-25, https://doi.org/10.63288/ciej.v1i1.3.