Cleophas, F. @ N., Isidore, F., Han, L.K. and Bidin, K. 2013. Water quality status of Liwagu River, Tambunan, Sabah, Malaysia. Journal of Tropical Biology & Conservation (JTBC). 10, (Jul. 2013), 67–73. DOI:https://doi.org/10.51200/jtbc.v10i.255.