Hettiaratchi, T. C. (1983). Mineralchemische Untersuchungen von Schwermineralen aus Waschrückständen der Edelsteinseifen Sri Lankas: Mineralogical-chemical analysis of heavy minerals from gem placers in Sri Lanka. Freie Univ.
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Tohutoru Kātū Chicago (17th ed.)
Hettiaratchi, Theja Chandana. Mineralchemische Untersuchungen Von Schwermineralen Aus Waschrückständen Der Edelsteinseifen Sri Lankas: Mineralogical-chemical Analysis of Heavy Minerals from Gem Placers in Sri Lanka. Berlin: Freie Univ, 1983.
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Tohutoro MLA (9th ed.)
Hettiaratchi, Theja Chandana. Mineralchemische Untersuchungen Von Schwermineralen Aus Waschrückständen Der Edelsteinseifen Sri Lankas: Mineralogical-chemical Analysis of Heavy Minerals from Gem Placers in Sri Lanka. Freie Univ, 1983.
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