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D. Pagaduan N, D. Catague J, E. Dela Cruz N, Orden MEM, C. Fermil A, P. Natividad E, M. Umadhay E, V. Obena R, E. Elane E, M. Jacinto, Jr. L, E. Ramos E. Characterization of Lahar and Black Sand Laden Soil Towards Improving Soil Productivity In Botolan, Zambales. CLSU-IJST [Internet]. 2021 Aug. 31 [cited 2026 Apr. 19];5(2):47-68. Available from: https://ijst.clsu.edu.ph/index.php/ijst/article/view/24