Gaya APA

Ihsan, T. (2020). Enviroaction 2020 : Better To Be Busy Than To Be Busy . Padang: LPPM Universitas Andalas.

Gaya MLA

Ihsan, Taufiq. "Enviroaction 2020 : Better To Be Busy Than To Be Busy". Padang: LPPM Universitas Andalas, 2020. Teks.