Romli, Mohd Faroul Rafiq, Mohd Fitri Ab Rasid, Azlan Muharam, and Nor Khairi Mohamad Ali. 2018. “Design for Automatic Automation for Batik Effluent Treatment System by PLC Controller Siemens Logo! 230RC”. Politeknik & Kolej Komuniti Journal of Engineering and Technology 3 (1). Putrajaya, Malaysia:20-29. https://app.mypolycc.edu.my/journal/index.php/PMJET/article/view/517.