Addams13, This lady makes beautiful Barbie dresses in knit and crochet. She sells her dresses there are no patterns associated with the dresses. There is a picture on her site that is similar to the same dress you posted but in pink and it sells for $8.39.

She has a sign up or sign in message in English where you can write her a message asking for this pattern maybe that will work. The link for this is below the picture.

Help, on the hunt
https://vk.com/id85658563


There are Barbie dresses on the Internet you can get the measurements for the doll and look at the picture and try to make it yourself.
Spoula