Batayang biyolohiya - Joaquin, Cresencia C.; Esmundo, Rosalinda R.; Carvajal, Josefina C.; Macahilig, Paz C.; Quintana, Violeta V.; Baquiran, Romulo P.; Gappi, Richard R.; Zotomayor, Alexie V. (Aklat paraluman, 1997)