Success Chibuoso O, Amarachi Cynthia I-B, Tariah-Hope B. THE INFLUENCE OF PRINCIPALS’ QUALITY ASSURANCE METHODS ON TEACHING EFFECTIVENESS OF SENIOR SECONDARY SCHOOL TEACHERS IN PORT HARCOURT AND OBIO/AKPOR LOCAL GOVERNMENT AREAS, RIVERS STATE. bwjournal [Internet]. 2026 Sep. 14 [cited 2026 Sep. 14];. Available from: https://www.bwjournal.org/index.php/bsjournal/article/view/4357