APA (7th ed.) Citation

Razali Mohd Hassan. (1999). Kristal. Edusystem Sdn. Bhd.

Chicago Style (17th ed.) Citation

Razali Mohd Hassan. Kristal. Selangor: Edusystem Sdn. Bhd, 1999.

MLA (9th ed.) Citation

Razali Mohd Hassan. Kristal. Edusystem Sdn. Bhd, 1999.

Warning: These citations may not always be 100% accurate.