@article{art5856,
  title = {The Influence of Price and Product Variety on Purchase Decisions at Kopi Kenangan Dharmahusada Branch, Surabaya},
  doi = {10.18535/ijsrm/v12i11.em16},
  url = {https://mail.ijsrm.net/index.php/ijecs/article/view/5856}
}