Badal- und GenitivkonstruktionenRosemarie LührVandenhoeck & Ruprecht GmbH & Co, KG; Vandenhoeck and Ruprecht (ISSN 0935-3518)2002DOI 10.2307/41289071
The Badal Optometer ParadoxWITTENBERG, SIDNEYOptometry and Vision Science1988DOI 10.1097/00006324-198804000-00008
A Persian Apostle: Benjamin BadalJ. Christy WilsonJohn Wiley and Sons1931DOI 10.1111/j.1478-1913.1931.tb00840.x
Useful Variations of the Badal OptometerATCHISON, DAVID A.Lippincott Williams and Wilkins1995DOI 10.1097/00006324-199504000-00010
Laser Optometer Incorporating the Badal PrincipleRobert T. Hennessy, Herschel W. LeibowitzBehavior Research Methods1972DOI 10.3758/bf03210005
Does the Badal Optometer Stimulate Accommodation Accurately?Aldaba, MikelJohn Wiley and Sons2016DOI 10.1111/opo.12334
Indo-Anglian Literature: An Out-Lineby R. K. BadalReview by: B. S. NaikarBooks Abroad1976DOI 10.2307/40130956
Control of the Myopic Shift in Modified Badal OptometerBolesław KȩdziaJohn Wiley and Sons1998DOI 10.1016/s0275-5408(97)00060-4|10.1046/j.1475-1313.1998.97000604.x
The Eye and Visual Optical InstrumentsSmith, GeorgeCambridge University Press (Virtual Publishing)1997DOI 10.1017/cbo9780511609541.031
Control of the Myopic Shift in Modified Badal OptometerBolestaw KȩdziaJohn Wiley and Sons1998DOI 10.1016/s0275-5408(97)00060-4