Ekadashi Mahatm Book (एकादशी महात्म) is an important book, in which information about puja path is hidden. – By Pt. Manohar Lal Sharma, Laxmi Prakashan. 

Kartik Mahatm Book (कार्तिक महात्म) is an important book, in which information about kartik maas is hidden. – By Pt. Manohar Lal Sharma, Laxmi Prakashan.