Iryantini Y, Tjahjaningsih E. The Influence of Digital Self Service and Social Media Promotion on Loyalty with Customer Satisfaction as an Intervening Variable Study on PT PLN (Persero) Customers. DIJEFA [Internet]. 2025 Oct. 14 [cited 2026 Sep. 3];6(5):4236-4. Available from: https://dinastipub.org/DIJEFA/article/view/5254