Gaya APA
Samara, D. (2009).
Gastrointestinal Symptoms and Sleep Disturbance in Female Nurses .
Grogol Jakarta:
Trisakti University.
Gaya MLA
Samara, Diana.
"Gastrointestinal Symptoms and Sleep Disturbance in Female Nurses".
Grogol Jakarta:
Trisakti University,
2009.
Text.