Alshebani, A. and Abdolrhman, I. (2021) “Microbial Pollution and Heavy Metals in the Work Environment of the College of Engineering and ‎Technology Sciences – Sebha University - Libya ‎ ‎(Computer Keyboard as a Case Study)‎”, Palestine Technical University Research Journal, 9(4), pp. 180–191. doi: 10.53671/pturj.v9i4.173.