E.Johnson Jack, Chiri - Mulkey Judith, G.Stanley Carole, & Sykes Cotton Delores. (1999). Glencoe Keyboarding with Computer Applications, Short Course, Spiral-Bound Student Edition, Lessons 1-80. American: MC Graw Hill.

E.Johnson Jack, Chiri - Mulkey Judith, G.Stanley Carole, و Sykes Cotton Delores. Glencoe Keyboarding With Computer Applications, Short Course, Spiral-Bound Student Edition, Lessons 1-80. American: MC Graw Hill, 1999.

E.Johnson Jack, Chiri - Mulkey Judith, G.Stanley Carole, و Sykes Cotton Delores. Glencoe Keyboarding With Computer Applications, Short Course, Spiral-Bound Student Edition, Lessons 1-80. American: MC Graw Hill, 1999.