Ullah, S. ., Rahman, I. ur ., & Rahman, S. ur. (2021). Systematic Augmentation of Artoolkit Markers for Indoor Navigation and Guidance: Systematic Augmentation of ARToolkit Markers for Indoor Navigation and Guidance. Proceedings of the Pakistan Academy of Sciences: A. Physical and Computational Sciences, 56(1), 1–8. Retrieved from http://ppaspk.org/index.php/PPAS-A/article/view/145