R.-K. KALWANT-SINGH, C.-L. SOO, and C.-A. CHEN, “Assessment of Microplastics in the Surface Water of Mengkabong and Salut Rivers of Sabah, Malaysia: Microplastics in the River Waters of Sabah”, BJRST, vol. 14, no. 2, pp. 1–18, Dec. 2024.