Title Bounds on signed total double Roman domination Type of Research Article Keywords Bounds on signed total double Roman domination Abstract Bounds on signed total double Roman domination Researchers Leila Shahbazi (First Researcher)، Hossein Abdollahzadeh Ahangar (Second Researcher)، Rana Khoeilar (Third Researcher)، Seyed Mahmoud Sheikholeslami Kavkani (Fourth Researcher)