Efendi Napitupulu
Observed names: Napitupulu, Efendi, Prof. Dr. Efendi Napitupulu, napitupulu, efendi
Institutions: Indonesia Open University, State University of Medan
ORCID: 0000-0002-3326-1309
Observed ORCID: 0000-0002-3326-1309
OpenAlex ID: A5103870872
