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, vol. 4, no. 5, May 2023, pp. 1697-0, https://doi.org/10.11594/ijmaber.04.05.30.