Bertha Eckstein-Diener,(Maris 18 ga wata, shekara ta 1874, Vienna – Fabrairu 20 ga wata, shekara ta 1948, Geneva),wacce aka fi sani da inkiyar ta ta Amurka Helen Diner matubuciya ce ‘yar kasar Austiriya.
Bertha Eckstein-Diener,(Maris 18 ga wata, shekara ta 1874, Vienna – Fabrairu 20 ga wata, shekara ta 1948, Geneva),wacce aka fi sani da inkiyar ta ta Amurka Helen Diner matubuciya ce ‘yar kasar Austiriya.