Inyang, Francis Nicholas, Daniel Effiong Uboh, and Uduak James Utibe. 2022. “The Effect of Demonstration, Guided-Discovery and Expository Instructional Methods on Senior Secondary Students Achievement in Physics in Ikot Abasi Local Government, Nigeria”. Journal of Research in Education and Society (JRES) 13 (3):124-35. http://icidr.org.ng/index.php/Jres/article/view/1527.