Molano-Cachero, M. C., & Ramos, M. F. V. (1999). Mathematics for the new millennium: Arithmetic : teacher's manual. Diwa Scholastic.
Lua i Stíl Chicago (17ú heag.)Molano-Cachero, Ma. Conception, agus Mary Fe V. Ramos. Mathematics for the New Millennium: Arithmetic : Teacher's Manual. Makati: Diwa Scholastic, 1999.
Lua MLA (9ú heag.)Molano-Cachero, Ma. Conception, agus Mary Fe V. Ramos. Mathematics for the New Millennium: Arithmetic : Teacher's Manual. Diwa Scholastic, 1999.
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