Ganapathy, T., mohd kamal othman, and A. S. Yahya. “Incorporating Heuristic Evaluation (HE) in the Evaluation of Visual Design of the Eco-Tourism Smartphone App”. Journal of Visual Art and Design, vol. 13, no. 1, July 2021, pp. 18-34, doi:10.5614/j.vad.2021.13.1.2.