Khatami, M. ., Sujatmiko, A. . and Asrori, A. (2023) “An Analysis of Emission Exhaust Gas on 4-Stroke Engine Based on IOT Gas Analyzer”, Logic : Jurnal Rancang Bangun dan Teknologi, 23(2), pp. 104–110. doi: 10.31940/logic.v23i2.104-110.