Knapp, Stephen
Pockport Pub, 1998
Buku Referensi
Forch, Matthias
Springer Nature, 2019
eBooks
Doremus, Robert H.
Wiley-Interscience, 1994
Buku Teks SO
Babcock, Clarence L.
John Wiley & Sons, 1977
Buku Teks SO
edited by O.V. Mazurin and E.A. Porai-Koshits
North-Holland, 1984
Buku Teks SO