Ragmala Singh Ashok. Rāgmālā Nirṇai. Amritsar, n.d. 3. Surindar Siṅgh Kohli. A Critical Study of Adi Granth. Delhi, 1961 4. Max Arthur Macauliffe. The Sikh Religion: Its Gurus, Sacred Writings and Authors. Oxford, 1909 5. Professor Sahib Singh. About the Compilation of Sri Guru Granth Sahib (Tr. Daljit Singh). Amritsar, 1996 6. Madan Singh. Raag Maala - A Re-appraisal in the Context of Sri Guru Granth Sahib Ji. Amritsar, 2003. 7. Taran Singh. Ragmala. The Encyclopaedia of Sikhism, Vol. III. Ed. Harbans Singh. Punjabi University, Patiala, 1997. P 426. 8. Kavi Santokh Singh. Sri Gur Partap Suraj Granth. https://web.archive.org/web/20080905180746/http://www.ik13.com/Rasses/SGPS%20Raas%203.pdf Ragmala Ragmala
Guru Granth Sahib added the religious compositions of Guru Tegh Bahadur to Adi Granth to create a definitive compilation. Religious verses of Guru Gobind Singh were not included in Guru Granth Sahib, but he added 1 sloak in mahala 9 Ang 1429. His banis are found in the Sri Dasam Granth, they are part in the daily prayers of Sikhs During this period, Bhai Mani Singh also collected Guru Gobind Singh's religious writings, as well as his court poems, and included them in a secondary religious volume, today known as the "Dasam Granth Sahib". Sikhs consider the Guru Granth Sahib as the eternal