1. Wehmeier S , ed. Oxford advanced learner’s dictionary, sixth edition Oxford: Oxford University Press , 2000: 450-450.
2. İnceoğlu S. Ö lme Hakkı-Ötanazi (Right to die-euthanasia). Istanbul: Ayrıntı Yayınları , 1999: 135-254 (in Turkish).
3. Ö zkara E. Ötanazide Temel Kavramlar ve Güncel Tartişmalar (Basic concepts and current discussion about euthanasia). Ankara: Seçkin Press , 2001: 11-46 (in Turkish).
4. Netherlands legalise euthanasia
5. Euthanasia in Europe