Abdulhamid, H., Gamawa, A. I., Badejo, B. I. MARKET STRUCTURE AND CONDCT OF COWPEA (Vigna unguiculata L.) MARKETING IN YOBE STATE, NIGERIA. njaat [Internet]. 2026 Jun. 12 [cited 2026 Jun. 30];6(2A):113-22. Available from: https://www.njaat.com.ng/index.php/njaat/article/view/1615