Fitria, T. N. (2023). Introducing Bahasa Indonesia bagi Penutur Asing (BIPA): Method and challenges of teaching Indonesian as a Foreign Language (IFL). Inovasi Kurikulum, 20(2), 205-224.
Fitriani, N., & Maulia, E. (2020). "The Importance of Bahasa Indonesia Proficiency in Tourism Sector". Journal of Language Teaching and Research, 11(4), 288-294.
Ministry of Education and Culture, Republic of Indonesia. (2022). Guidelines for the Establishment and Operation of BIPA Programs. Retrieved from [https://www.kemdikbud.go.id/](https://www.kemdikbud.go.id/).
Ministry of Tourism and Creative Economy Republic of Indonesia. (2021). "Strategic Plan for the Development of Bahasa Indonesia for Foreign Speakers in the Context of Tourism". Retrieved from [link]
Pemerintah Pusat Indonesia. (2014). Undang-undang (UU) Nomor 3 Tahun 2014 tentang Perindustrian. Jakarta
Poon, A. (1993). Tourism, technology and competitive strategies. CAB international.
Roppolo,  C.  (1996)  International  education:  What  does  thismean  for  universities and  tourism?  In  M.  Robinson,N.  Evans  and  P.  Callaghan  (eds) Tourism  and Cultural Change (pp. 191--201)
Soeseno, S. (2019). "The Economic Impact of Bahasa Indonesia Proficiency in Indonesian Tourism Industry". Tourism, 67(2), 165-172.
Suprastayasa, I. G. N. A., & Ariasri, N. R. (2023). BIPA (Indonesian for Foreign Speakers) as an Educational Tourism Program in Bali: Opportunities and Challanges. LACULTOUR: Journal of Language and Cultural Tourism, 2(1), 11--17.
Wardhaugh, R. (2006). Komunikasi Indonesia untuk Penutur Asing. Yogyakarta: Gadjah Mada University Press.
Winata, D. (2020). Challenges and Solutions of BIPA Program in Indonesia. Journal of Language and Literature, 11(3), 567-578.
