Gaya APA

Filyan, A. (). Kenakalan anak tupai= the delinquency of squirrel child . Surabaya: Serba Jaya Surabaya.

Gaya MLA

Filyan, Ahmad. "Kenakalan anak tupai= the delinquency of squirrel child". Surabaya: Serba Jaya Surabaya, . Text.