00393nam a22001097a 450000500170000000800410001704000130005808200240007124501260009526000510022130000110027220220223105030.0220223b           ||||| |||| 00| 0 eng d  cPK-LaUMT  a620.005095491bPRO-  aProceedings of Pakistan Engineering Congress : 76th annual session 2020-2021 /ccompiled and edited by Ch. Ghulam Hussain  aLahore :bPakistan Engineering Congress,c2021  a348 p.