BERHANU KIBEMO, PUNITHA THAMBIDURAI, and MOORTHY KANNAIYAN. “Review on the Mechanisms of the Optimization of Anaerobic Digestion (AD) for Waste Water Treatment: From Economic and Environmental Perspective”. International Journal of Pharma and Bio Sciences 9, no. 1 (March 31, 2018): 275–280. Accessed July 23, 2026. https://ijpbs.net/index.php/journal/article/view/6366.