Songco, E. A. (2002). Teaching strategies in the social sciences for elementary grades (Rev. ed.). Katha Pub.
Dyfyniad Arddull ChicagoSongco, Evelyn A. Teaching Strategies in the Social Sciences for Elementary Grades. Rev. ed. Quezon City: Katha Pub, 2002.
Dyfyniad MLASongco, Evelyn A. Teaching Strategies in the Social Sciences for Elementary Grades. Rev. ed. Katha Pub, 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.