The Palestinian warfare claimed another Israeli victim yesterday: St.-Sgt. Roja Salama, who was killed by Palestinian sniper fire near Rafiach, in southern Gaza. He will be buried this afternoon in the Christian section of the cemetery in his village of Turan in the Galilee. Palestinian gunfire was shot last night at Psagot, Kfar Darom, N’vei Dekalim, and at a Jewish car near Shechem; no one was hurt.