Self-made sentences

English as a Second Language English Vocabulary, Grammar and Idioms
1

Which one(s) is/are correct?

(1) I learned from "XXX" the following:
(2) I learned from "XXX" as follows:
(3) I learned from "XXX" below:

 Thanks.
2

(3) I learned from “XXX” what is given/shown/indicated below:

3

More natural word order:
(1) I learned the following from “XXX”:
(2) I learned as follows from “XXX”:
(3) I learned what is written/shown/indicated below from “XXX”: