Juwita, Ratna, and Ahmad Syazili. “Evaluation of the Effectiveness of P-SIGN Digital Signature Application Using Technology Acceptance Model (TAM) Approach at PT Pertamina Patra Niaga Regional South Sumatra”. International Journal Software Engineering and Computer Science (IJSECS) 5, no. 2 (August 1, 2025): 744–751. Accessed December 30, 2025. https://journal.lembagakita.org/ijsecs/article/view/4403.