Contributions Sub Marine Tourism Opportunity To Work And Family Income Level Natal Sub-District Fishermen On The Beach Natal Mandailing Natal Regency Of North Sumatra Province

Item Type
Language	English
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Author	Ido Shinji 井土 愼二
Abstract
Journal or Publication Title	Contributions Sub Marine Tourism Opportunity To Work And Family Income Level Natal Sub-District Fishermen On The Beach Natal Mandailing Natal Regency Of North Sumatra Province
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Year	2014
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