Miftakul Amin, M., Azel Aji Nugratama, M., Maseleno, A., Huda, M., & Azmi Jasmi, K. (2018). Design of cigarette disposal blower and automatic freshner using mq-5 sensor based on atmega 8535 microcontroller. International Journal of Engineering & Technology, 7(3), 1108-1113. https://doi.org/10.14419/ijet.v7i3.11917