Ruslina Rusmani. (2007). Competency level examination online system (CLEOS). Universiti Teknikal Malaysia Melaka.
Čikaški stil citiranja (17. izdanje)Ruslina Rusmani. Competency Level Examination Online System (CLEOS). Durian Tunggal: Universiti Teknikal Malaysia Melaka, 2007.
MLA način citiranja (8. izdanje)Ruslina Rusmani. Competency Level Examination Online System (CLEOS). Universiti Teknikal Malaysia Melaka, 2007.
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