A. Budianto, S. Rahayu, L. Mardiana, R. Ridho Illahi, and R. Juniarti, “A Development of a Coarse Particle Concentration Measurement System Using a Crystal-Based Sensor and a Dust Sensor for Air Quality Measurement”, J. Pendidik. Fis. Teknol., vol. 10, no. 1, pp. 10–15, Jun. 2024.