DEBBARMA, B., and P. CHAUDHURI. “EARTHWORM CASTING ACTIVITY AND THEIR NUTRIENT CONTRIBUTION TO THE SOILS OF PASTURE, NATURAL FOREST AND RUBBER PLANTATION IN TRIPURA INDIA”. UTTAR PRADESH JOURNAL OF ZOOLOGY, vol. 41, no. 21, Dec. 2020, pp. 11-22, https://mbimph.com/index.php/UPJOZ/article/view/1744.