Sihombing, Nikous, AND 		Marbun, Iin.
" PENGARUH KUALITAS PELAYANAN PURNA JUAL  TERHADAPLOYALITAS KONSUMEN PADA  PT. ASTRA INTERNATIONAL-TSO AUTO2000 SM RAJA MEDAN" <em>JURNAL CREATIVE AGUNG</em> [Online], Volume 10 Number 1 (29 July 2021)