Search History Select to load keywords (subject equals "Petrology") AND (subject equals "Petrology -- Thailand") AND (subject equals "Petrology -- Thailand -- Nakhon Sawan") AND (subject equals "Skarn -- Thailand -- Khao Lek (Nakhon Sawan)") (type equals "Thesis") AND (dateIssued equals "[2500 TO 2566]") AND (dateIssued equals "[2550 TO 2559]") AND (subject equals "Non-formal education") AND (dateIssued equals "2558")
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