Παραπομπή σε μορφή APA (7η εκδ.)

Miftakhul Jannah, Rachman Widohardhono, & Navylia Tirta Kencana. (2023). Progressive Muscle Relaxation: Can it Reduce Competitive Anxiety? OVS LLC.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Miftakhul Jannah, Rachman Widohardhono, και Navylia Tirta Kencana. Progressive Muscle Relaxation: Can It Reduce Competitive Anxiety? OVS LLC, 2023.

Παραπομπή σε μορφή MLA (9th εκδ.)

Miftakhul Jannah, et al. Progressive Muscle Relaxation: Can It Reduce Competitive Anxiety? OVS LLC, 2023.