Deh IY, Appiah N, Denanyoh R. Determinants Of Satisfaction Of Mobile Phone Keypad And Keypad Design Factors In Short Message Service Usage. theijbm [Internet]. 2014 Sep. 30 [cited 2024 Jul. 23];1(9). Available from: https://internationaljournalcorner.com/index.php/theijbm/article/view/127768