N. . Islam and M. M. . Billah, “Choice of Reading Tools: Hardcopy or Softcopy”, IJLLT, vol. 2, no. 6, pp. 456–463, Nov. 2019, Accessed: Jun. 01, 2026. [Online]. Available: https://al-kindipublishers.org/index.php/ijllt/article/view/634