Isro’iyah, L. ., and D. . Ima Herminingsih. “Development of BIPA Teaching Materials Based on Cross-Cultural Business Communication Using a Contextual Approach”. International Journal of Social Science, Education, Communication and Economics (SINOMICS JOURNAL), vol. 3, no. 2, June 2024, pp. 549-58, doi:10.54443/sj.v3i2.336.