1.
Iroth Y, Sinaga J. Expectancy Theory As A Determination Of Net Promoter Score (Nps): Increasing The NPS Value Of Services. EKOMBIS [Internet]. 10Jul.2024 [cited 22Jul.2024];12(3):2741–2746. Available from: https://jurnal.unived.ac.id/index.php/er/article/view/5438