Leelavathi Muthupalaniappen, Juslina Omar, Khairani Omar, Tuti Iryani, Siti Norain Hamid.  (2012).  Emotional and behavioral problems among adolescent smokers and their help-seeking behavior.  - Southeast Asian Journal of Tropical Medicine and Public Health.  43(5):1273-9. 

Khairani Omar, Mohamad Adam Bujang, Tuti Iryani Mohd Daud, Fairuz Nazri Abd Rahman, Sit Fong Loh, Jamaiyan Haniff, Rozanim Kamarudin, Fauzi Ismail, Susan MK Tan.  (2011).  Validation of the Malay version of adolescent coping scale.  - International Medical Journal.  18(4):288-292.