R. Irwansyah, M. B. Herdian, and Y. Whulanza , Trans., “Development of a microfluidic paper based with portable system for glucose concentration colorimetric analysis”, Seminar Nasional Tahunan - Teknik Mesin , vol. 23, no. 1, pp. 1–11, Mar. 2026, doi: 10.71452/2eqhby13.