salasawati hussin, srijit das, yew lok woo, farizal nordin, farizan zakil, hadi razak, norhayati jamaludin, nordiana ismail, noor hamiza ghulam, ainilhayati nordin, sharifah azura salleh.  (2011).  molecular detection of rifampicin resistance in mycobacterium tuberculosis: an urban study.  - international medical journal.  18(1):63-69.