Title On the total and strong version for Roman dominating functions in graphs Type of Research Article Keywords On the total and strong version for Roman dominating functions in graphs Abstract On the total and strong version for Roman dominating functions in graphs Researchers Sakineh Nazari-Mogaddam (First Researcher)، (Second Researcher)، Seyed Mahmoud Sheikholeslami Kavkani (Third Researcher)، I.G. Yero (Fourth Researcher)