1. Adorno, T. W., Dahrendorf, R., Albert, H., Pilot, H., Habermas, J., & Popper, K. R. (1969). Der Positivismusstreit in der deutschen Soziologie. Darmstadt/Neuwied: Luchterhand.
2. Agar, M. (1986). Review article on two discourse analysis volumes. International Journal of Pragmatics, 9(5), 710–716.
3. Barnard, M., Parkin, S., & McKeganey, N. (1997). Report of a pilot study on the factors influencing drug use among young people in Shetland. Unpublished report, Centre for Drug Misuse Research, Glasgow.
4. Beckerleg, S. (2004). How ‘cool’ is heroin injection at the Kenya coast. Drugs: Education, Prevention and Policy, 11(1), 67–77.
5. Berger, P., & Luckmann, T. (1966). The social construction of reality. A treatise in the sociology of knowledge. Garden City: Anchor Books.