K. Baderan, Dewi Wahyuni, Biology, Universitas Negeri Gorontalo (Indonesia)
Karim, Ahmad Tarmizi Abd, Civil & Environmental Engineering, Universiti Tun Hussein Onn Malaysia (Malaysia)
Karim, Ahmad Tarmizi Abdul, Civil and Environmental Management, University Tunn Hussein Onn Malaysia, Parit Raja, Johor (Malaysia)
Kasim, Muh, Politeknik Pariwisata Makassar, Jl.Gunung Rinjani Kota Mandiri Tanjung Bungan, Makassar, 90244, (Indonesia)
Kasmiati, Sitti, Geography Education Department, Universitas Halu Oleo, Anduonohu, Kendari (Indonesia)
Kenedi, Ary Kiswanto, Primary School Teacher Education, Universitas Samudra, Jl. Prof. Dr. Syarief Thayeb, Langsa (Indonesia)
Khalidy, Diky Al, Department of Geography, Universitas Negeri Malang, Malang (Indonesia)
Khan, Mian Muhammad Ajmal, Department of Commerce, University of Sahiwal, Sahiwal, Punjab (Pakistan)
Khotimah, Inaz Khusnul, Geography Education, Universitas Jember, Jember (Indonesia)
Kobi, Wiwin, Department of Earth Science and Technology, Universitas Negeri Gorontalo (Indonesia)
Kobi, Wiwin, Pendidikan Geografi, Universitas Negeri Gorontalo, Jl. Jend. Sudirman ,Gorontalo, 96128 , (Indonesia)
Kurniawan, Muchammad Akbar, Universitas Islam Negeri Maulana Malik Ibrahim Malang (Indonesia)
Kurniawati, Ida, Senior High School SMAN 1 Wongsorejo, Jl. Raya Situbondo Desa Bengkak, Banyuwangi (Indonesia)