Artist for Israel International
Yiddish Prisoner Hope Gospel Tract
https://issuu.com/ianbal/docs/yiddish_prisoner_hope_gospel_tract#google_vignette
Yiddish Gospel Tract - Only Jesus Christ Saves.pdf
https://www.slideshare.net/adrian1baldovino/yiddish-gospel-tract-only-jesus-christ-savespdf
The Four Spiritual Laws Tract Online in English and Yiddish
Yiddish English Bi-lingual Tract
https://afii.org/Yiddish-EnglishBi-lingualTract.pdf
Four Spiritual Laws
http://www.4laws.com/laws/yiddish/default.html
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.