Gunawan Widjaja graduated from the Faculty of Law University of Indonesia (LL.B. in 1990, LL.M. in 2002, and Ph.D in 2007). He also graduated from the Faculty of Public Health Universitas Indonesia (M.P.H in 2014 and M.H.A in 2015). He also had a Pharmacists degree (B.Pharm.) and a Master in Management (M.M.). He teaches at the Faculty of Law Universitas 17 Agustus 1945 Jakarta, Indonesia, and the Faculty of Public Health Universitas Indonesia. He has written over 70 books; 50 are in Bahasa Indonesia, and 20 are in English. Besides teaching, he is an arbitrator at the Singapore International Arbitration Centre (SIAC), SHIA, SCIA, SCIAHK, and BIAMC, a sports arbitrator and adjudicator at AIAC, and a mediator at BIAMC.