Pereira, M., O. Postolache, P. Girao, and Helena Ramos. “COLORED LIGHT-TO-VOLTAGE CONVERTERS BASED ABSORBANCE METER”. International Journal of Computing 2, no. 1 (August 1, 2014): 58-64. Accessed August 2, 2025. https://www.computingonline.net/computing/article/view/164.