APA Style

Surajiyo, . et al (2019, 2017, 2014, 20). Dasar-dasar Logika (Cet.7). Jakarta: Bumi Aksara.

MLA Style

Surajiyo, . et al. "Dasar-dasar Logika". Cet.7 Jakarta: Bumi Aksara, 2019, 2017, 2014, 20. Text.