Gaya APA

al., E. et al (2000,2014). Asas-asas Penelitian Behavioral (ketiga,Ed. 3). Yogyakarta: Gadjah Mada University Press.

Gaya MLA

al., Et. et al. "Asas-asas Penelitian Behavioral". ketiga,Ed. 3 Yogyakarta: Gadjah Mada University Press, 2000,2014. Text.