Gaya APA

warfield, T. et al (2017). The Content Validity of the English Summative Test on the Tenth Grade of the Second Semester at SMAN 38 Jakarta in 2015/2016 Academic Year . [s.i.]: .

Gaya MLA

warfield, Terry.d. et al. "The Content Validity of the English Summative Test on the Tenth Grade of the Second Semester at SMAN 38 Jakarta in 2015/2016 Academic Year". [s.i.]: , 2017. Text.