The effect of pretreatment using sodium hydroxide and acetic acid to biogas production from rice straw wasteBudiyono, Aryantoko Wicaksono, Arif Rahmawan, Hashfi Hawali Abdul Matin, Larasati Gumilang Kencana Wardani, Tutuk Djoko Kusworo and Siswo SumardionoMATEC Web Conf., 101 (2017) 02011DOI: https://doi.org/10.1051/matecconf/201710102011