Sunkavalli, Surya P, A Gangagni Rao, P Swapnalata, and M Zaheer. “Leaching Characteristics of Poultry Litter in First Phase of Multistage Anaerobic Digestion”. International Journal of Environment 3, no. 2 (May 30, 2014): 76–82. Accessed March 29, 2024. https://nepjol.info/index.php/IJE/article/view/10516.