Abdul Manan MS, Shah Fri NA, Mansor NN, Wasir NY, Mohd Dawi MSI, Ahmad RN. Design and Development of a Trash and Oil Trap for Drainage in Commercial Area Using Waste Chicken Feathers. MJEr [Internet]. 2025 Dec. 31 [cited 2026 Jan. 1];7. Available from: https://ejournal.unimap.edu.my/index.php/mjer/article/view/2754