Radding, Charles M.
Medieval architeture, medieval learning: Builders and Master in the Age of Romanesque and Cothic
Yale University Press, 1991
Buku Teks
Raychoudhary, S.C.
Social cultural and economic history of India (medieval age)
Surjeet Publications, 1984
Buku Teks SO
The Natural resources of Flores Island / edited by Herwint Simbolon
Research and Development Center of Biology, 1998
Buku Teks
The Oxford book of late medieval verse and prose / edited, Douglas Gray
Oxford University Press , 1988
Buku Teks
Everyman, and medieval miracle plays / edited with an introduction by A. C. Cawley.
J.M. Dent, 1974
Buku Teks