APA Citation

Walidi. (2006). Step by Step to Speak English. Citra Aji Parama.

Chicago Style Citation

Walidi. Step By Step to Speak English. Citra Aji Parama, 2006.

MLA Citation

Walidi. Step By Step to Speak English. Citra Aji Parama, 2006.

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