Ameh, B.O., Danladi, E. B. HENRY GARRETT’S RANKING ANALYSIS OF THE CONSTRAINTS TO YAM MARKETING IN NON-PRODUCING REGION: A CASE STUDY OF BAUCHI STATE, NIGERIA. njaat [Internet]. 2024 Dec. 31 [cited 2025 May 22];4(4B):102-14. Available from: https://njaat.com.ng/index.php/njaat/article/view/903