Kurniawan K, Zulaikha. Loyalitas Konsumen JNE Surabaya: Korelasi antara Marketing Public Relations dan Kualitas Pelayanan. JKP [Internet]. 2017Jun.1 [cited 2024Jul.3];2(1). Available from: https://ejournal.unitomo.ac.id/index.php/jkp/article/view/911