Abdurrachman Faridi, - and Fahrur Rozi, FE Pendidikan Ekonomi and Siti Nurmasitah, - (2019) Material Development of English Correspondence Using Task-Based Approach (TBA) for UNNES Students. In: UICRIC 2018 UNNES International Conference on Research Innovation and Commercialization 2018, 10 November 2018, Semarang.

Abdurrachman Faridi, - and Fahrur Rozi, FE Pendidikan Ekonomi and Siti Nurmasitah, - (2018) HOW TO WRITE Official Letters in English. Fastindo. ISBN 978-602-6627-22-3