University of the Philippines Diliman. Institute for Science and Mathematics Education Development. The Elementary School Mathematics Group Writing Team. (1999). Sourcebook on practical work for teacher trainers: Elementary school mathematics, vol.2 / The Elementary School Mathematics Group Writing Team, Edna S. Gabriel-Callanta ... [et al.] ; Language editor, Theresa B. Barcella (Final ed.). UP ISMED.
Chicago Style (17. basım) AtıfUniversity of the Philippines Diliman. Institute for Science and Mathematics Education Development. The Elementary School Mathematics Group Writing Team. Sourcebook on Practical Work for Teacher Trainers: Elementary School Mathematics, Vol.2 / The Elementary School Mathematics Group Writing Team, Edna S. Gabriel-Callanta ... [et Al.] ; Language Editor, Theresa B. Barcella. Final ed. Diliman, Quezon City: UP ISMED, 1999.
MLA (9th ed.) AtıfUniversity of the Philippines Diliman. Institute for Science and Mathematics Education Development. The Elementary School Mathematics Group Writing Team. Sourcebook on Practical Work for Teacher Trainers: Elementary School Mathematics, Vol.2 / The Elementary School Mathematics Group Writing Team, Edna S. Gabriel-Callanta ... [et Al.] ; Language Editor, Theresa B. Barcella. Final ed. UP ISMED, 1999.