Purba, R.H.S. and Simamora, J. 2025. The responsibility of electronic cigarette (e-cigarette) business operators who do not include information labels and warnings according to Law Firm Tomi Sihotang & Partners. TOFEDU: The Future of Education Journal. 4, 2 (Feb. 2025), 631–640. DOI:https://doi.org/10.61445/tofedu.v4i2.476.