00514nam a22001457a 4500 540 RIK Rikza Zahid 10705 Extraction and Characterzation of Humic Substances from Indiginous Coal Resources / Faisalabad: M.Phil ; Chemistry (2015-GCWUF-0199), 2017. v. 84 p. : HB; 30cm. Include Index and bibliography p. 81-84 Chemistry Characterization of Hemic Substances 12092 Dr. Kiran Aftab 10647 TH 14497 14497 0 0 0 0 TH PAK PAK TH 2024-07-15 0 540 RIK 2023-10-25 00:00:00 2023-10-25 TH