Waruwu K. PENGARUH PELAYANAN ( TANGIBLE, RELIABELITY, RESPONSIVINESS, ASSURANCE, DAN EMPHATY ) TERHADAP KEPUASAN KONSUMEN PT NUTRI INTI PRIMA PERKASA MEDAN. value [Internet]. 2Jul.2020 [cited 4May2024];1(1):63-7. Available from: https://journal.utnd.ac.id/index.php/value/article/view/91