A.T H, A.T H, O. C. EFFECTIVENESS OF EXTENSION COMMUNICATION TECHNIQUES AMONG COCOYAM FARMERS PRODUCTIVITY IN GOKANA LOCAL GOVERNMENT AREA, RIVERS STATE, NIGERIA. bj [Internet]. 2024 Apr. 21 [cited 2025 Oct. 3];:14. Available from: https://mail.bwjournal.org/index.php/bsjournal/article/view/1852