Eko Rial Nugroho. “The Obligation to Use Indonesian Language in the Formation of Contract With Foreign Investor: Problems and the Need to Amend the Indonesian Law No. 24 of 2009”. Researchers World - International Refereed Social Sciences Journal 10, no. 2 (August 17, 2021): 19–22. Accessed December 22, 2024. https://researchersworld.com/index.php/rworld/article/view/48.