INVESTIGATING THE ENERGY PROSPECT OF PIGEON PEA WASTE, RICE STRAW AND DONKEY RUMEN LIQOUR, USING A 25 - LITRES PLASTIC DIGESTER. iijp. 2025;1(issue 4):140-164. Accessed April 26, 2026. https://impactinternationaljournals.com/publications/index.php/ojs/article/view/122