Salmia, Salmia, Daniel Useng, and Samsuar Samsuar. “Estimation of Soil C-Organic Content Based on Reflectance Values Generated from Spectrometer”. Salaga Journal 3, no. 1 (June 2, 2025): 11–17. Accessed September 21, 2025. https://agritech.unhas.ac.id/ojs/index.php/salaga/article/view/1813.