SHARMILA K J, GOMATHY B, DIVYA BALAMANI P, KALPANA N, and NANDHA KUMAR P. “NITROGEN, PHOSPHORUS, AND POTASSIUM RANGE OF VERMICOMPOST USING EISENIA FETIDA AND PERIONYX EXCAVATUS”. Innovare Journal of Agricultural Sciences, Mar. 2019, pp. 1-5, https://mail.innovareacademics.in/journals/index.php/ijags/article/view/29425.