Comparison between carboxymethyl cellulose (CMC) and palm oil fuel ash (POFA) as alternatives in fluid loss agent / by 625547 Efa Sofea Abd. Mutalibi, 1993- , author, Mohd. Akhmal Muhamad Sidek, supervisor 1986- , 603589, Fakulti Kejuruteraan Petroleum dan Kejuruteraan Tenaga Diperbaharui Sekolah Kejuruteraan Kimia dan Kejuruteraan Tenaga 558316