Ara, Easnin, Ayeasha Akhter, and Md. Ariful Hoque. 2015. “Analyzing the Changes of Preference Factors of Billboard by the Gender, Age & Occupation of Customer: A Study on Dhaka City”. AIUB Journal of Business and Economics 12 (1):81-100. https://ajbe.aiub.edu/index.php/ajbe/article/view/75.