00298nam a22001097a 4500003000500000038001200005082001300017100001600030245009400046260003100140300001700171NUST  aMSOHAIL  a628bTAL  aAhmed Talal  aBiogas production through dry anaerobic digestion of waste sludge (MS Thesis - Env Engg.)  aIslamabadbNUST-IESEc2019  ap;90,;c30cm