Trigonometry.
Reyes, Fe N. ...[et.al.]
Trigonometry. - 2nd/ed. - Philippines : National Book Store, c2000. - 394p. illus. (np) 22cm.
Includes index.
9710861328
Trigonometry--c2000--Philippines--newsprint
Trigonometry. - 2nd/ed. - Philippines : National Book Store, c2000. - 394p. illus. (np) 22cm.
Includes index.
9710861328
Trigonometry--c2000--Philippines--newsprint