Healthline. https://www.healthline.com/health/what-causes-concurrent-neck-and-shoulder-pain-and-how-do-i-treat-it
Diakses pada 15 Oktober 2020Medicine Net. https://www.medicinenet.com/shoulder_and_neck_pain_health/article.htm
Diakses pada 15 Oktober 2020Cleveland Clinic. https://health.clevelandclinic.org/do-you-have-a-stiff-neck-try-these-simple-remedies/
Diakses pada 15 Oktober 2020