LENNY MUTIARA AMBARITA. ANALYSIS OF LEGAL CERTAINTY, LEGAL PROTECTION AGAINST CANCELLATION OF REGISTERED MARKS (STUDY OF DECISION NUMBER 03/PDT.SUS-MEREK/2015/PN NIAGA MEDAN). Multidiciplinary Output Research For Actual and International Issue (MORFAI), [S. l.], v. 3, n. 2, p. 516–526, 2023. DOI: 10.54443/morfai.v3i2.1118. Disponível em: https://radjapublika.com/index.php/MORFAI/article/view/1118. Acesso em: 22 jun. 2025.