Gustav Roth, Bhikṣuṇī-Vinaya, K. P. Jayaswal Research Institute (Patna 1970), p. xxiv.
A manuscript of the Prajñāpāramitā is dated to the 9th year of his reign, which Bhattacharyya determines to correspond to 1170-1171 CE. D.C. Bhattacharyya, A Dated and Illustrated Ms. of the Prajñāpāramitā, contained in: Devendra Handa and Ashvini Agrawal, eds., Ratna-chandrikā: Panorama of Oriental Studies, Harman Publishing House (New Delhi 1989), pp. 305-314. The figures illustrated in the manuscript include Hevajra.
An Aṣṭa manuscript made in the 39th year of his reign, in 1200 CE. Allinger, Five Collections, p. 90, with a note on previous studies.
Kalpana Desai and Sadashiv Gorakshkar, An Illustrated Aṣṭasāhasrikā Prajñāpāramitā Ms. from Bihar, Journal of the Asiatic Society of Bombay, vols. 56-59 (1981-84), pp. 66-68.
A.K. Bhattacharyya, A Dated Pañcarakṣā Ms. of the Reign of Govindapāladeva, Indian Museum Bulletin, vol. 4, no. 1 (1969), pp. 114-116.
Reigned 1140-1161 CE. He was the last Pāla king. Banerji-Sastri, Kurkihar, p. 301.