Contact

E-mail: professorjonas@gmail.com
Tel: +55 (61) 99204-5557
Editora JRG
CNPJ: 30.152.162/0001-06
Brasília, Distrito Federal, DF, Brasil.

Principal Contact

Jonas Rodrigo Gonçalves

Editora JRG

Phone +55 (61) 9-9204-5557

Support Contact

Danilo da Costa

Phone +55 (61) 9-9555-5470