Haroun, K. M., Yagob, A. A. M. and Abd Allah, M. D. (2017) “Derivation of Klein – Gordon Equation for Frictional Medium”, American Scientific Research Journal for Engineering, Technology, and Sciences, 38(1), pp. 1–6. Available at: https://asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/3526 (Accessed: 30 April 2024).