Gaya APA

al., E. et al (2002,2005,2010,2012,2013,2021,2023). Metodologi Penelitian Kesehatan (Ed. I,-). Jakarta: Rineka Cipta.

Gaya MLA

al., Et. et al. "Metodologi Penelitian Kesehatan". Ed. I,- Jakarta: Rineka Cipta, 2002,2005,2010,2012,2013,2021,2023. Text.