The textbooks they used included 暦律志, such as "Kanjo"(historical records of the Han Dynasty) and "Jin shu" (History of the Jin Dynasty), commentaries for the adopted calendar ("Daienrekigi" (annotation book of the calendar), "Senmyorekikyo" (annotation book of the calendar)), and other books such as "Teitenron" (annotation book of the calendar) and "Shuhisankei" (a mathematics book from ancient China).
教科書としては『漢書』・『晋書』の暦律志や採用されている暦の注釈書（『大衍暦議』・『宣明暦経』）、『定天論』・『周髀算経』などが用いられた。