"Expedition to Khorassan," Read and Know, No. 16, Tehran 9th September, 1967.
1403. "The Valley of the Assassins," RCAJ XLVII (1960): pp. 147-151.
1404. The Castles of the Assassins. London, 1963.
1405. "Further Expeditions to the Valleys of the Assassins," RCAJ LIV (1967): 156-162.
1406. "Assassins of Qain," Geogr. Mag. XL (1968): 1294-1303.
1407. "The Assassins in Quhistan," RCAJ LV (1968): 180-183.
1408. "The 1972 Assassin Expedition," Asian Affairs LXI (1974): 60-70.
1408a. "Expedition to Khorassan," Read and Know, No. 16, Tehran 9th September, 1967.