Shahidi, Shahwali. “Comparing the Effectiveness of Conventional and Kano Model Questionnaire for Gathering Requirement of Online Bus Reservation System”. International Journal of Innovative Research and Scientific Studies 3, no. 1 (March 17, 2020): 27–32. Accessed April 26, 2024. https://www.ijirss.com/index.php/ijirss/article/view/30.