“IoT-Based Material Height Monitoring and Temperature-Humidity Control System With ESP32 on a Dosimat Feeder Hopper at PT. Semen Padang”. Journal of Industrial Automation and Electrical Engineering, vol. 2, no. 2, Dec. 2025, pp. 159-6, https://doi.org/10.24036/jiaee.v2.i2.pp159-169.