S. Laddha, Shilpa, and Dr. Pradip M. Jawandhiya. “Onto Semantic Tourism Information Retrieval”. International Journal of Engineering & Technology 7, no. 4.7 (September 27, 2018): 148–151. Accessed May 1, 2024. https://sciencepubco.com/index.php/ijet/article/view/20532.