Toshio FUKUYAMA, an architectural historian, restored and studied historical materials related to Ishiyama-dera Temple, which were included in monjo created by the Sutra copying office and clearly showed the construction procedures for Ishiyama-dera Temple (constructed from 761) ('Construction of Ishiyama-dera Temple in the Nara Period,' 1933, included in "Nihon kenchiku shi no kenkyu" [Complete Works of the History of Japanese Architecture]).
建築史家・福山敏男は写経所文書に含まれていた石山寺関係史料の復元考察を行い、石山寺の造営過程（761年-）を浮かび上がらせた（「奈良時代に於ける石山寺の造営」1933年、『日本建築史の研究』所収）。