Risamasu, Robby. G. “Classification of Soil Distribution on the Island of Saparua Based on the Soil Classification System National and the Equivalent to Soil Taxonomy”. International Journal of Multidisciplinary: Applied Business and Education Research 4, no. 5 (May 26, 2023): 1697–1707. Accessed January 24, 2026. https://ijmaberjournal.org/index.php/ijmaber/article/view/993.