Who is the director of the three monks?

Jingda Xu and Mark Xuan. "Three Monks" is an animated short film adapted from China folk proverbs and produced by Shanghai Animation Film Studio in 1981. The short film was directed by Jingda Xu and Mark Xuan, and written by Bao Lei. In 214, China Children's Art Theatre put Three Monks on the stage and performed more than 1 performances on five continents.