Title ON SIGNED ARC TOTAL DOMINATION IN DIGRAPHS Type of Research Article Keywords ON SIGNED ARC TOTAL DOMINATION IN DIGRAPHS Abstract ON SIGNED ARC TOTAL DOMINATION IN DIGRAPHS Researchers L. Asgharsharghi (First Researcher)، abdollah khodkar (Second Researcher)، Seyed Mahmoud Sheikholeslami Kavkani (Third Researcher)