Optimization strategies for improved biogas production by recycling of waste through response surface methodology and artificial neural network: Sustainable energy perspective rese... oleh Lakshmi C. Gopal, Marimuthu Govindarajan, M.R. Kavipriya, Shahid Mahboob, Khalid A. Al-Ghanim, P. Virik, Zubair Ahmed, Norah Al-Mulhm, Venkatesh Senthilkumaran, Vijayalakshmi Shankar