Steel, Duncan
Marking time : the epic quest to invent the perfect calendar
John Wiley & Sons, 2000
 Buku Referensi
Irwin, Keith Gordon
365 days / Keith Gordon Irwin
homas Y. Crowell, 1963
 Buku Teks
S. Resowidjojo
Almanak gampang 1900-2000
Balai Pustaka, 1987
 Buku Referensi
Tjokorda Rai Sudharta
Kalender 301 tahun ( tahun 1800 s/d 2100)
Balai Pustaka, 1989
 Buku Referensi
Chao, Shu-Li
Rhymes of Li Yu-tsai and other stories / Chao Shu-Li
Foreign Language Press, 1954
 Buku Teks