Pattanayak, S., Dasgupta, R., Chakravorty, P. P., & Chakraborty, S. K. (2014). Changes in Growth Rate and Activities of α Amylase and Cellulase of P. excavatus, an Epigeic Earthworm in Decomposing Leaf Litter of Five Tree Species. The International Journal of Science & Technoledge, 2(11). Retrieved from http://internationaljournalcorner.com/index.php/theijst/article/view/139940