Trigonometry Course

Modern Trigonometry (Complete Course): Mathematics for Individualized Instruction

Independently published

Practical Trigonometry: 5 Courses Series        

Intelinnov Education Private Limited

Mithran Mathematics - Trigonometry Course: for beginners, CBSE Grade 10 and ICSE Grade 10 students (English Edition)

Pws Pub Co

Calculus/Late Trigonometry Version              

Imprint unknown

Arithmetic and Trigonometry: Course Companion    

Legare Street Press

Elements of Geometry and Trigonometry. Revised and Adapted to the Course of Mathematical Instruction in the United States

Hansebooks

Short and comprehensive course of Geometry and Trigonometry: designed for general use in schools and colleges

College Algebra and Trigonometry a Basic Integrated Course

Imprint unknown

Algebra with Trigonometry: Second Course        

Ulan Press

Elements of geometry and trigonometry. Revised and adapted to the course of mathematical instruction in the United States