Zahid, M., and H. Mujataba Nawaz Saleem. “Direction and Destination Pattern of Fresh Oranges Export from Pakistan: A Markov Chain Approach”. Journal of Tourism, Hospitality, and Services Industries Research (JTHS), vol. 2, no. 01, June 2022, pp. 18-30, doi:10.52461/jths.v2i01.1653.