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اليمنية, الدولة العثمانية الجمهورية العربية. "المملكة المتوكلية اليمنية". المعرفة (in Arabic). Archived from the original on 12 May 2017. Retrieved 23 June 2022.
Camberlin, Marie; Samouiller, Ségolène (1 July 2001). "Chronologie du Yémen contemporain (1904-1970)". Arabian Humanities. Revue internationale d'archéologie et de sciences sociales sur la péninsule Arabique/International Journal of Archeology and Social Sciences in the Arabian Peninsula (in French) (9). doi:10.4000/cy.67. ISSN1248-0568. Archived from the original on 22 June 2022. Retrieved 22 June 2022.
اليمنية, الدولة العثمانية الجمهورية العربية. "المملكة المتوكلية اليمنية". المعرفة (in Arabic). Archived from the original on 12 May 2017. Retrieved 23 June 2022.
Camberlin, Marie; Samouiller, Ségolène (1 July 2001). "Chronologie du Yémen contemporain (1904-1970)". Arabian Humanities. Revue internationale d'archéologie et de sciences sociales sur la péninsule Arabique/International Journal of Archeology and Social Sciences in the Arabian Peninsula (in French) (9). doi:10.4000/cy.67. ISSN1248-0568. Archived from the original on 22 June 2022. Retrieved 22 June 2022.
The planes that could not be flown were most likely This are the planes in the photo.
worldcat.org
Camberlin, Marie; Samouiller, Ségolène (1 July 2001). "Chronologie du Yémen contemporain (1904-1970)". Arabian Humanities. Revue internationale d'archéologie et de sciences sociales sur la péninsule Arabique/International Journal of Archeology and Social Sciences in the Arabian Peninsula (in French) (9). doi:10.4000/cy.67. ISSN1248-0568. Archived from the original on 22 June 2022. Retrieved 22 June 2022.