Mercedes Bern-Klug، Nancy D. Barnes (January 1999)۔ "Income characteristics of rural older women and implications for health status"۔ Journal of Women & Aging۔ 11 (1): 27–37۔ PMID10323044۔ doi:10.1300/J074v11n01_03الوسيط |name-list-style= تم تجاهله (معاونت)(رکنیت درکار)
Mercedes Bern-Klug، Nancy D. Barnes (January 1999)۔ "Income characteristics of rural older women and implications for health status"۔ Journal of Women & Aging۔ 11 (1): 27–37۔ PMID10323044۔ doi:10.1300/J074v11n01_03الوسيط |name-list-style= تم تجاهله (معاونت)(رکنیت درکار)