Harahap, R. Hamdani

• PROCEEDING ICTESS (Internasional Conference on Technology, Education and Social Sciences) 2020: PROCEEDINGS ICTESS - Artikel
  Mangrove Ecotourism in Sei Nagalawan Village, Perbaungan District, Serdang Bedagai Regency, North Sumatra Province (Study on Sustainable Utilization of Coastal Natural Resources)
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