Design and construction of anair pollution detection system using a laser beam and absorption spectroscopy. Baghdad Science Journal, Iraq, Baghdad, v. 20, n. 3, p. 0825, 2023. DOI: 10.21123/bsj.2022.7650. Disponível em: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/7650.. Acesso em: 11 may. 2024.