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• The Contribution of the Biota Diversity of Lake Toba to Indonesia's Biota Wealth

  Ika Rosenta Purba , Nurhayati

  996-1002

  2024-02-28

  Statistics: 388

• Lake Toba Local Potential Utilization as a Learning Resource for Biodiversity Topic

  Novita Manalu , Suhartini

  8430-8438

  2023-10-25

  Statistics: 349

• The Influence of Monoculture and Polyculture Planting Patterns on the Intensity of Pest Attacks by Helopeltis sp. on Arabica Coffee of the Sigarar Utang Variety in North Tapanuli Regency

  Retna Astuti Kuswardani , Siti Mardiana , Suswati , Saipul Sihotang

  11296-11301

  2023-12-20

  Statistics: 421

• The Influence of Creativity on Welfare Through Self-Efficacy in the Lake Toba Area of Samosir District

  Nalom Siagian , Darma Manalu , Artha Lumban Tobing , Natalia E Sihombing , Jhonson Pasaribu

  10-17

  2024-08-25

  Statistics: 399