The first and second collections of “Newly Edited Wedding Spare Months Old and New Books” each have 12 volumes in the late Southern Song Dynasty. This is a collection of the National Library of Taipei.

Layman Fayun: How to Calculate the Years and Months of the Great Canal (Part 1)

How Layman Fayun Calculates the Years and Months of the Great Canal (Part 2)

Twenty-four mountain years, months, days, good and bad times

Layman Fayun: How to Calculate the Years and Months of the Universiade

Layman Fayun: How to Calculate the Years and Months of the Universiade (up and down)