Gaya APA

Riyanto, S. et al (2008). A Quick and Effective Strategy to Prepare The TOEFL Test; Kupas Tuntas Strategi Cepat & Efektif Persiapan Paper-Based TOEFL (ce. 1). : Pustaka Pelajar.

Gaya MLA

Riyanto, Slamet. et al. "A Quick and Effective Strategy to Prepare The TOEFL Test; Kupas Tuntas Strategi Cepat & Efektif Persiapan Paper-Based TOEFL". ce. 1 : Pustaka Pelajar, 2008. Text.