APA (7th ed.) Citation

Herold. (2009). Discover sound. Terbilang Buku Sdn. Bhd.

Chicago Style (17th ed.) Citation

Herold. Discover Sound. Kuala Lumpur: Terbilang Buku Sdn. Bhd, 2009.

MLA (8th ed.) Citation

Herold. Discover Sound. Terbilang Buku Sdn. Bhd, 2009.

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