REFERENCES

KALTON, G., (2014). Probability sampling methods for hard-to-sample populations. Chapt. 19 [in] Roger Tourangeau, Brad Edwards, Timothy P. Johnson, Kirk M. Wolter, and Nancy Bates (Eds.) Hard-to-Survey Populations. Cambridge University Press, Cambridge, UK.

http://www.amazon.com/gp/reader/1107031354/ref=sib_dp_pt#reader-link.

KISH, L., (1991). Taxonomy of elusive populations, in Journal of Official Statistics, 7(3), 339–347.

KORDOS, J., (2008). Book review. Sampling for household-based surveys of child labour, by Vijay Verma, Statistics in Transition new series, Vol. 9, No. 3, pp. 587–590.

TOURANGEAU, R., EDWARDS, B., JOHNSON, T. P., WOLTER, K. M., BATES, N. (Eds.), (2014). Hard-to-Survey Populations. Cambridge University Press, Cambridge, UK.

VERMA, V., (2008). Sampling for household-based surveys of child labour prepared within the framework of the ILO Statistical Information and Monitoring Programme on Child Labour (SIMPOC)