Plane & spherical trigonometry a tetrahedron approach door Mamhot, Millard R., Endam, Joemar C., Mamhot, Alice A., Banagua, Emelyn C., Bantug, Jenette S.

Worktext in college trigonometry door Domingo, Alleli C., Dimasuay, Lynie B., Lawas, Vernel M., Lubag, Sharon P., Almonte, Velimor D.

Plane & spherical trigonomerty a tetrahedron approach door Mamhot, Millard R., Endam, Joemar C., Mamhot, Alice A., Banagua, Emelyn C., Bantug, Jenette S.

Plane trigonometry door Carpio, Joy N., Guillermo, Jaymie M.

Plane and spherical trigonometry text / workbook door Baltazar, Ethel Cecille M., Dy, Ana Liza M., Vidar, Melvin A.

Algebra and trigonometry door Larson, Ron 1941-

College algebra door Larson, Ron 1941-

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Basic algebra and spherical trigonometry door Exconde, Maria Rosario C., Sabino, Lilibeth D., Marquez, Romel L., Fajardo, Ira A.

Trigonometry a worktext door Calingasan, Recto Rex M.

Stewart's algebra and trigonometry door Stewart, James