Gaya APA

Astuti, P, K. (2015). Developing secret code card for students writing descriptive text ability at the eighth grade of SMP Negeri 9 Metro and SMP Kartikatama Metro . Metro: Univ. Muhammadiyah Metro.

Gaya MLA

Astuti, Putri, Kesuma. "Developing secret code card for students writing descriptive text ability at the eighth grade of SMP Negeri 9 Metro and SMP Kartikatama Metro". Metro: Univ. Muhammadiyah Metro, 2015. Text.