Kadar, R., J. Othman, N. Abdul Wahab, and S. N. Warris. “Semantic Metadata Information (SMI) Visualisation Technique Using the Integration of Ontology and UML Graph-Based Approach to Support Program Comprehension”. Journal of Computing Research and Innovation, vol. 4, no. 1, Nov. 2019, pp. 52-63, doi:10.24191/jcrinn.v4i1.107.