Arfailasufandi, R. (2015). Pengaruh pemberian coklat hitam terhadap penurunan nyeri haid pada dismenorhea primer mahasiswi PSIK Muhammadiyah Malang [Effect of giving dark chocolate in reducing menstrual pain of primary dysmenorrhea in students of PSIK Muhammadiyah Malang]. Malang, Indonesia: University of Muhammadiyah Malang.
cacaoweb. (2016). About cacau beans, cocoa and chocolate. Retrieved January 16, 2016, from http://www.cacaoweb.net/cocoa-chocolate.html
Elvira, S. D. (2010). Sindrom pra-menstruasi normalkah? [Is pre-menstruation syndrom normal?]. Jakarta: Balai Penerbit FK UI.
Ministry of Health of Indonesia. (2013). Permenkes RI nomor 75 tahun 2013 tentang angka kecukupan gizi yang dianjurkan bagi bangsa Indonesia [Regulation of Ministry of Health of Indonesia no 75 year 2013 on nutritional adequacy rates recommended for Indonesian people]. Jakarta: Ministry of Health of Indonesia.
Judha, M., & Sudarti, A. F. (2012). Teori pengukuran nyeri dan nyeri persalinan [Measurement theory and labor pain]. Yogyakarta: Nuha Medika.
Llewellyn-Jones, D. (2005). Setiap wanita: Panduan terlengkap tentang kesehatan, kebidanan & kandungan [Every woman: Complete guideline for health, midwifery and pregnancy]. Jakarta: Delapratasa Publishing.
Nurazizah, E., Tih, F., & Suwindere, W. (2015). Black chocolate consumption reduces subjective symptoms in 18-22 years old females with premenstrual syndrome. Journal of Medicine and Health, 1(1).
Parker, M. A., Sneddon, A. E., & Arbon, P. (2010). The menstrual disorder of teenagers (MDOT) study: Determining typical menstrual patterns and menstrual disturbance in a large population‐based study of Australian teenagers. BJOG: An International Journal of Obstetrics & Gynaecology, 117(2), 185-192.
Puspitasari, N., & Novia, I. (2008). Faktor risiko yang mempengaruhi kejadian dismenore primer [Risk factors that influence primary dysmenorrea]. Indonesian Journal of Public Health, 4(3), 96-103.
Santrock, J. W., & Santrock, J. W. (2007). Psikologi pendidikan [Educational psychology] (2nd ed.) Jakarta: Kencana Prenada Media Group.
Smith, G. Z., & Smith, C. C. (2012). Chocolate candies fortified with natural amino acids and/or herbal nutrients for relief of insomnia, pms, and difficulty concentrating. U.S. Patent Application No. 13/485,864.
Speroff, L., & Fritz, M. A. (2005). Clinical gynecologic endocrinology and infertility. Philadelphia: Lippincott Williams & Wilkins.
Stoelting‐Gettelfinger, W. (2010). A case study and comprehensive differential diagnosis and care plan for the three Ds of women's health: primary dysmenorrhea, secondary dysmenorrhea, and dyspareunia. Journal of the American Association of Nurse Practitioners, 22(10), 513-522.
Widyastuti, Y., Rahmawati, A., & Purnamaningrum, Y. E. (2009). Kesehatan reproduksi [Reproduction health]. Yogyakarta: Fitramay.
Wulandari, S., & Afriliana, F. D. (2017). The effect of consumption dark chocolate against primary dismenore pain for girls teenager atKkediri 5 high School. Indian Journal of Medical Research and Pharmaceutical Sciences, 4(2), 17-24.
