1. Colposcopy: A Closer Look Into its Past, Present and Future;Bokil,2019
2. Video colposcopy;Ferris;Journal of Lower Genital Tract Disease,1997
3. Colposcopy and Treatment of Cervical Precancer;Prendiville,2017
4. Colposcopes: a critical review;Ferris;The Journal of Family Practice,1991
5. Modern Colposcopy Textbook and Atlas;Mayeaux,2011