Below are sources which Atarah Gur uses for this website and her classes pertaining to this subject:

"Be'nei Yissachar" -  Rabbi Tvi Elimelich from Denov 

"Likutei HaLachot"-  Rabbi Natan [student of Rebbe Nachman]

Connecting the Months to the Festivals to the Tribe, Letter, and Part of Body that is exemplified by the month

Portions of Torah read in this month and Haftorahs

Rebbe Tzaddok of Lublin

Based on passages from Sefer Yitzerah brought by the author of Rabbi Elimelech Tzvi of Dinov, author of Benei Yissachar

Chanukiot for Chanukah Candles