APA (7th ed.) Citation

Helmi Effendy. (2013). Epidemik. Grup Buku Karangkraf.

Chicago Style (17th ed.) Citation

Helmi Effendy. Epidemik. Shah Alam: Grup Buku Karangkraf, 2013.

MLA (8th ed.) Citation

Helmi Effendy. Epidemik. Grup Buku Karangkraf, 2013.

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