Siti Farah Hussin, Nor Zamira Othman, Masuria Mohd Tahar. Development of Portable Water Quality Monitoring System Using Apps. Politeknik & Kolej Komuniti Journal of Engineering and Technology [Internet]. 2019 Nov. 30 [cited 2024 Nov. 24];4(1):104-15. Available from: https://app.mypolycc.edu.my/journal/index.php/PMJET/article/view/252