Cahyani, Yunita Indah, Abdul Rahman, St. Nur Asni, David Lotisna, and Nugraha Utama Pelupessy. 2025. “The Relationship Between Anxiety Levels and Cortisol Concentrations in Young and Elderly Primigravida Women”. Journal of Neonatal Surgery 14 (26S). Lahore, Pakistan:163-68. https://www.jneonatalsurg.com/index.php/jns/article/view/6248.