“Application of Coffee Grounds (Coffea Sp.) for Macro and Micro Nutrient Production in Mangosteen Peel (Garcinia Mangostana L.) Compost”. TOFEDU: The Future of Education Journal, vol. 4, no. 7, Sept. 2025, pp. 3664-71, https://doi.org/10.61445/tofedu.v4i7.936.