APA (7th ed.) Citation

Vitasari, P., Muhammad Nubli, A. W., Herawan, T., Ahmad, O., & Suriya Kumar, S. (2011). Validating the instrument of study anxiety sources using factor analysis. Elsevier.

Chicago Style (17th ed.) Citation

Vitasari, Prima, Abdul Wahab Muhammad Nubli, Tutut Herawan, Othman Ahmad, and Sinnadurai Suriya Kumar. Validating the Instrument of Study Anxiety Sources Using Factor Analysis. Elsevier, 2011.

MLA (8th ed.) Citation

Vitasari, Prima, et al. Validating the Instrument of Study Anxiety Sources Using Factor Analysis. Elsevier, 2011.