Ani Yuliati, Achmad Kusyairi, and Erna Handayani. “Efektivitas Self Help Book Dan Sleep Hygiene Terhadap Insomnia Di Pondok Mahasiswi Hafshawaty”. Jurnal Ilmiah Kesehatan Mandira Cendikia 4, no. 10 (October 23, 2025): 440–450. Accessed April 19, 2026. https://journal.mandiracendikia.com/index.php/JIK-MC/article/view/1981.