Gaya APA

Astuti, Trifia. (). BIMBEL . : Grand Media.

Gaya Chicago

Astuti, Trifia. BIMBEL. : Grand Media, . Text.

Gaya MLA

Astuti, Trifia. BIMBEL. : Grand Media, . Text.

Gaya Turabian

Astuti, Trifia. BIMBEL. : Grand Media, . Print.