FACS

 https://melindaozel.com/

https://imotions.com/blog/facial-action-coding-system/

https://www.paulekman.com/product-category/facs/

https://www.paulekman.com/facial-action-coding-system/

https://www.paulekman.com/blog/cultural-differences-in-emotional-expressions/

https://learn.eiagroup.com/learn-facs?gclid=Cj0KCQjw4cOEBhDMARIsAA3XDRgWx_wyeKR7XuEyKtF9M0AG9bgl5zlTpK32MwejZTDFlLmVCqtLLkAaAppxEALw_wcB

https://www.youtube.com/watch?v=I_03LsSHNgA&ab_channel=INTELECOM

https://www.youtube.com/watch?v=QaTg7G7_xs8&ab_channel=PaulEkmanGroup