Rashid, Muhammad Mahbubur, Abdullah Al Mamun, Abdul Hassan Jaafar, and Md. Sajib Mollik. “Development of Non-Contact Liquid Level Measurement and Data Storage System”. International Journal of Engineering Materials and Manufacture 3, no. 3 (September 10, 2018): 134-142. Accessed May 12, 2021. https://deerhillpublishing.com/index.php/ijemm/article/view/65.