1. Ainsworth, M. (2005). Socioeconomic Determinants of Fertility in Sub-Saharan Africa: A Summary of the Findings of a World Bank Research Project. Washington D.C.: The World Bank.
2. Arısoy, N. (2007). Examining 8th Grade Students’ Perception of Learning Environment of Science Classrooms in Relation to Motivational Beliefs and Attitudes. Unpublished Theses in Middle East Technical University, Ankara, Turkey. Attainment in the Netherlands. Sociology of Education, vol.59, pp.237-246.
3. Azizoglu, N. & Çetin, G. (2009). The Effect of Learning Style on Middle Schools Students’ Motivation and Attitudes towards Science, and the Relationships among These Variables. Kastamonu Education Journal, vol.17:1, pp.171-182.
4. Baloch, Z. W., Tam, D., Langer, J., Mandel, S., LiVolsi, V. A. & Gupta, P. K. (2000). Ultrasound‐Guided Fine‐Needle Aspiration Biopsy of the Thyroid: Role of On‐Site Assessment and Multiple Cytologic Preparations. Diagnostic Cytopathology, vol.23:6, pp.425-429.
5. Benn, D. I., Owen, L. A., Osmaston, H. A., Seltzer, G. O., Porter, S. C. & Mark, B. (2005). Reconstruction of Equilibrium-Line Altitudes for Tropical and Sub-Tropical Glaciers. Quaternary International, vol.138, pp.8-21.