Shantanu L. Kulkarni and M. Elango, “DEVELOPMENT OF PLC BASED CONTROLLER FOR BOTTLE FILLING MACHINE”, Int. j. innov. eng. res. technol., vol. 3, no. 4, pp. 1–10, Mar. 2021, Accessed: Jul. 13, 2025. [Online]. Available: https://repo.ijiert.org/index.php/ijiert/article/view/865