Analysis of information sources in references of the Wikipedia article "مبرقة كاتبة" in Arabic language version.
{{استشهاد بكتاب}}: تحقق من التاريخ في: |تاريخ الوصول= (مساعدة)Samuel Morse was one of the pioneers of electric telegraphy. Prompted by receiving news of his wife's death too late to attend her funeral, Morse was determined to improve the speed of long distance communications (which at that point relied on horse messengers).
{{استشهاد ويب}}: تحقق من قيمة |مسار أرشيف= (مساعدة)Samuel Morse was one of the pioneers of electric telegraphy. Prompted by receiving news of his wife's death too late to attend her funeral, Morse was determined to improve the speed of long distance communications (which at that point relied on horse messengers).
{{استشهاد ويب}}: تحقق من قيمة |مسار أرشيف= (مساعدة){{استشهاد بكتاب}}: تحقق من التاريخ في: |تاريخ الوصول= (مساعدة)