Widyatama, R., Polereczki, Z.: The Indonesia Policy on Television Broadcasting: a Politics and Economics Perspective.
Iranian Economic Review. 25 (4), 677-690, 2021.

Kitukutha, N., Widyatama, R.: Impact of TV media on e-commerce growth and performance in developing countries.
Selye e-studies. 11 (1), 42-54, 2020.

Widyatama, R.: The Impact of Ambiguity Regulation in Indonesia's Television Industry.
Act. Prob. Econ. 199 (1), 28-38, 2018.

Widyatama, R.: The Television Business In Indonesia: a Comparative Study of The Old Regime, The New Order, and the Reform Era.
Oradea Journal of Business and Economics. 3 (1), 66-75, 2018.

Widyatama, R.: Who owns the broadcastings television network business in Indonesia?.
Netw. Intell. Stud. 6 (1), 7-16, 2018.

Widyatama, R.: Capitalism vs. Business Ethics in Indonesia's Television Broadcasting.
SEA: Pract. Appl. Sci. 6 (16), 27-35, 2017.

Widyatama, R.: Marketing A New Local Television In Decentralized System of Television Broadcasting In Indonesia: A Lesson Learned From ADi TV.

Widyatama, R.: The effect of sanctions on indonesian television business to compliance in attending broadcast guidelines.
In: Károly Ihrig Doctoral School of Management and Business : Conference for PhD Students, Faculty of Economics and Business, Debrecen, 37, 2017.

Widyatama, R.: The position of television broadcast in Indonesia's market: an overview.
In: Tavaszi Szél Konferencia 2017: Nemzetközi Multidiszciplináris Konferencia : Absztraktkötet. Szerk.: Keresztes Gábor, Kohus Zsolt, Szabó P. Katalin, Tokody Dániel, Doktoranduszok Országos Szövetsége, Budapest, 275, 2017. ISBN: 9786155586149

Widyatama, R.: Economic Development Throught Local Television in Yogyakarta.
In: ICUBERD 2016 Book of Papers. Ed.: Vivien Kleschné Csapi, Zsolt Bedő, University of Pécs, Pécs, 156-173, 2016. ISBN: 9789636427788