Synthesis and characterization of phosphate and nitrate groups supported on Protonated Fibrous Silica Beta-Zeolite for n-Hexane and Cyclohexane Hydroisomerization - Siti Maryam Izan, 1992-, 589975; Zaiton Abdul Majid, supervisor 458052; Aishah Abd. Jalil, supervisor 598112; Fakulti Sains 8004 (Johor Bahru, Johor : Universiti Teknologi Malaysia, 2020)