Danial, Adang (2005) Faktor Penyebab Terjadinya Kambuh Kembali (Relaps) Pasca Pengobatan Medis Penyalahguna Napza Di Pondok Pesantren Suryalaya Tasikmalaya (The Factors Which Make Relaps Occur After Medical Treatment Of Drugs Abuse At Islamic Boarding School Suryalaya Tasikmalaya). Masters thesis, Program Pascasarjana Universitas Diponegoro.