Hery S, Aachmad Fauzan, and Septiropa Zamzami. 2012. “Appropriate Technology For Landfill Methane Gas Extraction For Electricity Generation And Emission Reduction”. Jurnal Teknik Industri 11 (2):150-56. https://doi.org/10.22219/JTIUMM.Vol11.No2.150-156.