APA Style

Astuty, M., Fajariadi, D. (2013). Increasing Nursing Students Studying Concentration by Repairing Sleep Quality in Sekolah Tinggi Ilmu Kesehatan Sumatera Utara Medan . Jakarta: AIPNI.

MLA Style

Astuty, Mazly., Fajariadi, Dian. "Increasing Nursing Students Studying Concentration by Repairing Sleep Quality in Sekolah Tinggi Ilmu Kesehatan Sumatera Utara Medan". Jakarta: AIPNI, 2013. Prosiding.