[1] Fergusson, History of Indian and Eastern Architecture.
[2] Cunningham, Archaeological Survey of India, Vol. I, XVI.
[3] Cunningham, Arch. Surv., Vol. V.
[4] Cunningham, Arch. Surv., Vol. XVI.
[5] Cunningham, Arch. Surv., Vol. X.
[6] Cunningham, Arch. Surv., Vol. XX.
[7] Cunningham, Arch. Surv., Vol. III.
[8] Fergusson, Hist. of Ind. a. East. Archit.
[9] Grünwedel, Buddhistische Kunst in Indien.
[10] Le Bon, Les Monuments de l'Inde.