Ekene, Nnebe Samuel, Okoro Efeosasere Moibi, and Abara Benjamin Abaioni. 2021. “Restaurant Multi-Context-Based Information Retrieval System Ontological Model”. Covenant Journal of Informatics and Communication Technology 9 (1). https://journals.covenantuniversity.edu.ng/index.php/cjict/article/view/2614.