Suleman, Sabera, and Tehmina Nazar. “Consumer Behavior in Purchase of Mobile Phone in Urban City of Karachi”. JISR management and social sciences & economics 6, no. 2 (December 31, 2008): 19–23. Accessed October 2, 2024. https://jisrmsse.szabist.edu.pk/index.php/szabist/article/view/335.