selected publications academic article A Mixed Integer Linear Programming for Exam-Invigilator Assignment Problem: A Case Study at Universiti Pertahanan Nasional Malaysia. JOIV : International Journal on Informatics Visualization. 8. 2024 Development of a self-rating system for domestic water consumption in Malaysia. IOP Conference Series: Earth and Environmental Science. 646:012018. 2021 Water usage behaviour: Case study in a southern state in Peninsular Malaysia. IOP Conference Series: Earth and Environmental Science. 646:012017. 2021 Model Performance Indicator of Aging Pipes in a Domestic Water Supply Distribution Network. Water. 11:2378. 2019 Evolution of research on water leakage control strategies: where are we now?. Urban Water Journal. 15:812-826. 2018