Cleanliness assessment of Lake Toba tourist attractions from stakeholders' perspective.
| Autor: | Khair, H, Utami, R, Lordye, G, Sari, U, Pasaribu, E |
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| Zdroj: | IOP Conference Series: Earth & Environmental Science; 2022, Vol. 1098 Issue 1, p1-8, 8p |
| Databáze: | Complementary Index |
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