Gaya APA

Asyari, M. (2016). Improving critical thinking skills through the integration of problem based learning and group investigation (Vol. 5 No. 1, 2016). : Emerald.

Gaya MLA

Asyari, Marhamah. "Improving critical thinking skills through the integration of problem based learning and group investigation". Vol. 5 No. 1, 2016 : Emerald, 2016. e-journal.