Gaya APA

HENNESSEY, G, S., Citraningtyas, C, E. ([s.a.]). Purple Learns to Use Less! (Ungu Belajar Hemat) . Tangerang: IieLeM.

Gaya MLA

HENNESSEY, Gail, Skroback., Citraningtyas, Clara, Evi. "Purple Learns to Use Less! (Ungu Belajar Hemat)". Tangerang: IieLeM, [s.a.]. Text.