School of Management;
Ahfad University for Women;
Omdurman;
Sudan;
Deanship of Preparatory Year;
College of Science and Arts;
Najran University;
Najran;
Kingdom of Saudi Arabia;
Fuzzy Numbers; Henstock-Stieltjes (HS) Integrals of Interval-Valued Functions; Henstock-Stieltjes (HS) Integrals of Fuzzy-Number-Valued Functions;