Bucaoto, A. P. (1972). Paper folding: An instructional device in the teaching of geometry.
Chicago-viite (17. p.)Bucaoto, Avelino P. Paper Folding: An Instructional Device in the Teaching of Geometry. Quezon City, 1972.
MLA-viite (9. p.)Bucaoto, Avelino P. Paper Folding: An Instructional Device in the Teaching of Geometry. 1972.
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