F. ALNAJJAR, S.; سناء; M. SULAIMAN, J.; جمیل. Detection of light transmittance of liquids using an electronic circuit. Journal of Education and Science (JES), [S. l.], v. 22, n. 3, p. 74–81, 2009. DOI: 10.33899/edusj.2009.57765. Disponível em: https://rjps.uomosul.edu.iq/index.php/edusj/article/view/18198. Acesso em: 4 aug. 2025.