Natalya Melik Melikyan
Natalya Melik Melikyan ( Armenian: Նատալյա Մելիքի Մելիքյան ) ( May 20 , 1906 – July 25 , 1989 ) was an Armenian scientist . 
<triplet> Natalya Melik Melikyan <subj> July 25, 1989 <obj> date of death <subj> Armenia <obj> country of citizenship