Suryani Y. Optimizing the Volume of Starter and the Time of Fermentation in the Production of Biogas from Vegetable Wastes with Maximum Content of Methane Gas. 5003 [Internet]. 2012 Dec. 3 [cited 2024 May 15];2(12):789-97. Available from: https://archive.aessweb.com/index.php/5003/article/view/3429