Gunawan, I., Rambe, R.D.H., Saputra, W., Nurhayati and Ritonga, S.H. 2025. Comparative Effectiveness of Organic Fertilizer Types on Soybean Growth, Yield, and Soil Health in Sustainable Cultivation Systems. Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering). 14, 6 (Dec. 2025), 2338–2347. DOI:https://doi.org/10.23960/jtepl.v14i6.2338-2347.