Brick arches: 1 Corbelling; 2 &amp; 3 Temple at Bhitagaon, ca. 5th century; 4 Ctesiphon ca. 250 AD; 5 &amp; 6 Bodh Gaya ca. 7th century. Plate XL
Percy Brown (1872–1955)
Brown, Percy. <i>Indian Architecture: Buddhist and Hindu Periods.</i> Bombay: D.B. Taraporevala Sons, 1959. <a rel="nofollow" class="external free" href="https://archive.org/details/in.gov.ignca.18060">https://archive.org/details/in.gov.ignca.18060</a>.