Artikel Jurnal
NUS (National University of Singapore,
Buku Teks
Pakpahan, Victoria M., author
The Ary Suta Center, 2018
Artikel Jurnal
edited by Simon Grima, Frank Bezzina, Inna Romanova, Ramona Rupeika-Apoga
Emerald, 2017
eBooks
Muhammad Farras Mutawakkil, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2019
UI - Skripsi (Membership)