Berkaitan Richard Wagner Richard von Coudenhove-Kalergi Richard Huckle Richard Nixon Richard Feynman Richard Dawkins Richard I dari England Richardo Benito Richard Malanjum Richard Dreyfuss
Rujukan WikiPedia: Richard_Adolf_Zsigmondy http://www.musoptin.com/winkel_zeiss_32607.html http://adsabs.harvard.edu/abs/1965Natur.206Q.139. http://socialarchive.iath.virginia.edu/ark:/99166/... http://aleph.nli.org.il/F/?func=find-b&local_base=... http://data.bibliotheken.nl/id/thes/p08948584X //doi.org/10.1002%2Fange.19250381402 //doi.org/10.1002%2Fange.19290424602 //doi.org/10.1002%2Fcber.19300631144 //doi.org/10.1007%2FBF01500203 //doi.org/10.1038%2F206139a0
