APA-ийн эшлэл(7 дахь хэвлэлт)

Sayed, T. A., Mahmoud, O. A. A., & Hadad, S. (2022). Early versus late onset depression: Sociodemographic and clinical characteristics. SpringerOpen.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Sayed, Taher Abdelraheem, Osama Abd Alreheem Mahmoud, ба Saber Hadad. Early Versus Late Onset Depression: Sociodemographic and Clinical Characteristics. SpringerOpen, 2022.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Sayed, Taher Abdelraheem, et al. Early Versus Late Onset Depression: Sociodemographic and Clinical Characteristics. SpringerOpen, 2022.