References
- Foong K., Navaratnam V. “Assessment of Drug Dependence in Malaysia–A Trend Analysis”. Monograph Series No. 5. Drug Research Centre. Universiti Sains Malaysia, Penang 19871. Foong K., Navaratnam V. “Assessment of Drug Dependence in Malaysia–A Trend Analysis”. Monograph Series No. 5. Drug Research Centre. Universiti Sains Malaysia, Penang 1987
- Navaratnam V., Fgong K. “Natural History of Heroin Addiction and Adjunctive Drug Use”. Research Report Series No. 16. Centre for Drug Research. Universiti Sains Malaysia, Penang 19882. Navaratnam V., Fgong K. “Natural History of Heroin Addiction and Adjunctive Drug Use”. Research Report Series No. 16. Centre for Drug Research. Universiti Sains Malaysia, Penang 1988
- Navaratnam V., Foong K. Sequence of onset of different drug use among opiate addicts. Curr. Med. Res. Opin. 1989; 11: 6003. Navaratnam V., Foong K. Sequence of onset of different drug use among opiate addicts. Curr. Med. Res. Opin. 1989; 11: 600