Safitri, Anggun, Imam Santoso, Agus Sutopo, and Mei Ahyanti. “Internet of Things (IoT) System for Plastic-Sorting Sensory Device”. Open Science and Technology 3, no. 1 (June 6, 2023): 13–28. Accessed October 7, 2025. https://www.opscitech.com/journal/article/view/89.