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

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

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

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

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

Algebra and trigonometry von Larson, Ron 1941-

College algebra von Larson, Ron 1941-

Table of contents only

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

Trigonometry a worktext von Calingasan, Recto Rex M.

Stewart's algebra and trigonometry von Stewart, James