APA Style

Sutrisno, A. et al (2012). The relationship between body mass index (BMI) with the distance of the skin-epidural space in 3rd and 4th lumbar epidural anesthesia in nonobstetric surgery of Indonesian patient . Yogyakarta: FK Universitas Gajah Mada Yogyakarta.

MLA Style

Sutrisno, Agung. et al. "The relationship between body mass index (BMI) with the distance of the skin-epidural space in 3rd and 4th lumbar epidural anesthesia in nonobstetric surgery of Indonesian patient". Yogyakarta: FK Universitas Gajah Mada Yogyakarta, 2012. Text.