Gaya APA

Widodo, . (2019). Metode Penelitian: Populer & Praktis (Ed. 1, Cet. 3). Depok : .

Gaya MLA

Widodo, . "Metode Penelitian: Populer & Praktis". Ed. 1, Cet. 3 Depok : , 2019. Buku.