Abdul-Ratha, A. &. “EFFECT OF ADDITION OF VERMICOMPOST, BIO AND MINERAL FERTILIZER ON THE AVAILABILITY OF SOME NUTRIENTS IN SOIL AND POTATO YIELD”. IRAQI JOURNAL OF AGRICULTURAL SCIENCES, Vol. 51, no. 2, Apr. 2020, pp. 644-56, doi:10.36103/ijas.v51i2.992.