1. Abou El Fadl, K. (2005). Dogs in the Islamic tradition and nature. In B. R. Taylor (Ed.), The encyclopedia of religion and nature (pp. 498–500). London & New York: Continuum International.
2. Allen, C. (2014). Umwelt or umwelten? How should shared representation be understood given such diversity? Semiotica, 198, 137–158.
3. Angyal, A. (1958). Foundations for a science of personality. Cambridge: Harvard University Press.
4. Berglund, J. (2014). Princely companion or object of offence? the dog’s ambiguous status in Islam. Society and Animals, 22, 545–559.
5. Calabrò, S. (1999). Der Blindenführhund. Aspekte einer besonderen Mensch-Tier-Beziehung in Geschichte und Gegenwart. Berlin: Wissenschaft und Technik Verlag.