APA Style

Mutiara,Ipa Ratna. (2019). Guru profesional . Medan: Gerhana Media.

Chicago Style

Mutiara,Ipa Ratna. Guru profesional. Medan: Gerhana Media, 2019. Text.

MLA Style

Mutiara,Ipa Ratna. Guru profesional. Medan: Gerhana Media, 2019. Text.

Turabian Style

Mutiara,Ipa Ratna. Guru profesional. Medan: Gerhana Media, 2019. Print.