Ibrahim, Iro. I., Auwalu, B. M., and Sabo, M. U., “EFFECT OF PHOSPHOROUS RATES ON GROWTH AND YIELD OF COWPEA [Vigna unguiculata (L.) Walph.] VARIETIES IN JOS NORTH, PLATEAU STATE, NIGERIA”, JASD, vol. 5, no. 2, pp. 81–94, Jun. 2022.