Fleet, John F. Corpus Inscriptionum Indicarum: Inscriptions of the Early Guptas. Vol. III. Calcutta: Government of India, Central Publications Branch, 1888, pp20-21
"In the Punjab the stylistic progression of the gold series from Kushan to Kidarite is clear: imitation staters were issued first in the name of Samudragupta, then by Kirada, 'Peroz' and finally Kidara" in Errington, Elizabeth; Curtis, Vesta Sarkhosh (2007). From Persepolis to the Punjab: Exploring Ancient Iran, Afghanistan and Pakistan. British Museum Press. p. 88. ISBN9780714111650.
"It was his conquests which brought to him the gold utilized in his coinage and also the knowledge of its technique acquired from his acquaintance with Kushan (eastern Punjab) coins. His earliest coins began as imitations of these Kushan coins, and of their foreign features which were gradually replaced by Indian features in his later coins." in Mookerji, Radhakumud (1997). The Gupta Empire. Motilal Banarsidass Publ. p. 30. ISBN9788120804401.
"Known by the term Dinars in early Gupta inscriptions, their gold coinage was based on the weight standard of the Kushans i.e. 8 gms/120 grains. It was replaced in the time of Skandagupta by a standard of 80 ratis or 144 grains" Vanaja, R. (1983). Indian Coinage. National Museum.
"During the course of this expedition, he is believed to have attacked and defeated the Saka Chief Shridhar Varman, ruling over Eran-Vidisha region. He then annexed the area and erected a monument at Eran (modern Sagar District) "for the sake cf augmenting his fame"." in Pradesh (India), Madhya; Krishnan, V. S. (1982). Madhya Pradesh: District Gazetteers. Government Central Press. p. 28.
