Saleh, S.A.R., Jumaah, H.J., Khalaf, Z.A. and Jumaah, S.J. 2023. Design of Multi-gas Monitoring Device for Indoor Air Quality. Journal of Electronic & Information Systems. 5, 1 (Apr. 2023), 1–9. DOI:https://doi.org/10.30564/jeis.v5i1.5390.