Four Spiritual Laws Online
http://www.4laws.com/laws/yiddish/default.html
http://www.4laws.com/laws/languages.html
Four Spiritual Laws Tract on Paper in Yiddish
https://www.fourspirituallawstract.com/four-spirit-laws.php?lang=Yiddish
https://www.fourspirituallawstract.com
I am not sure if you will be able to find the tract on paper in Yiddish.
Yiddish Four Spiritual Laws Online
Language Spiritual Laws Online
https://fourspirituallaws.com/
https://www.fourspirituallawsonline.com/
Please check the places below to find the tract on paper in Yiddish.
CRU Store
https://crustore.org/
Cru used to be Campus Crusade for Christ. The original tract was published by Campus Crusade for Christ. It was written by Bill Bright.
Power to Change
https://store.powertochange.org
This website has the tracts is many languages.