Arciaga, V., Guzman, F. d., Ogena, E. B., & Talisayon, V. M. (2002). TIMSS-like test items in elementary school mathematics and science. Department of Science and Technology-Science Education Institute and University of the Philippines National Institute for Science and Mathematics Education Development.
Chicago Style (17. basım) AtıfArciaga, Violeta, Fe de Guzman, Ester B. Ogena, ve Vivien M. Talisayon. TIMSS-like Test Items in Elementary School Mathematics and Science. Quezon City: Department of Science and Technology-Science Education Institute and University of the Philippines National Institute for Science and Mathematics Education Development, 2002.
MLA (9th ed.) AtıfArciaga, Violeta, et al. TIMSS-like Test Items in Elementary School Mathematics and Science. Department of Science and Technology-Science Education Institute and University of the Philippines National Institute for Science and Mathematics Education Development, 2002.