Nabha, Bhai Kahan Singh. 1926. Gurushabad Ratnakara Mahan Kosh.
Nabha, Bhai Kahan Singh. 1926. Gurushabad Ratnakara Mahan Kosh. Chandigarh: Bhasha Vibhag Punjab, 1999.
Nabha, Bhai Kahan Singh. 1926. Gurushabad Ratnakara Mahan Kosh. Chandigarh: Bhasha Vibhag Punjab, 1999.