Gaya APA

chiappetta, B. et al (2017). The Content Validity of the English Summative Test for the Tenth Grade Students of SMA Negeri 57 Jakarta Barat in the First Semester of 2016-2017 Academic Year . Jakarta: .

Gaya MLA

chiappetta, Barbara. et al. "The Content Validity of the English Summative Test for the Tenth Grade Students of SMA Negeri 57 Jakarta Barat in the First Semester of 2016-2017 Academic Year". Jakarta: , 2017. Text.