Usman GI, Ibrahim MA. THE ECONOMIC ADVANTAGES OF SPRAY PESTICIDES ON COWPEAS (Vigna unguiculata L. Walp) PRODUCTION IN GOMBE LOCAL GOVERNMENT AREA, GOMBE STATE, NIGERIA. BIJE [Internet]. 2020 Aug. 8 [cited 2024 Nov. 23];10(1):93-100. Available from: https://bijejournal.com/BIJE/article/view/75