Kamil, Firmanilah, Politeknik Negeri Ketapang, West Kalimantan (Indonesia)
Karawahenni, Yolanda Dwi Vivian, Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang (Indonesia)
Karlimah, Karlimah, Department of Elementary School Teacher Education, Universitas Pendidikan Indonesia (Indonesia)
Karyadi, Bhakti, Department of Science Education, Faculty of Teacher Training and Education, University of Bengkulu (Indonesia)
Karyatin, Karyatin (Indonesia)
Khairudin, Khairudin, Politeknik Kesehatan-Kementerian Kesehatan Malang (Indonesia)
Khatimah, Maulidya Husnul, Study Program of Vocational Education, Graduate School of Universitas Negeri Malang (Indonesia)
Khery, Yusran, Pendidikan Kimia-Pascasarjana Universitas Negeri Malang; Pendidikan Kimia-FPMIPA IKIP Mataram (Indonesia)
Khusnah, Laila, Pendidikan Biologi–Universitas Islam Jember (Indonesia)
Koes H, Supriyono, Physics education-Universitas Negeri Malang (Indonesia)
Koes H, Supriyono, Pendidikan Fisika–Universitas Negeri Malang (Indonesia)
Koes-H, Supriyono, Physics education-Universitas Negeri Malang (Indonesia)
Koeshandayanto, Supriyono, Physics Education–Universitas Negeri Malang (Indonesia)
Koswojo, Jane, Study Program of Physics Education, Faculty of Education and Teacher Training, Widya Mandala Catholic University Surabaya (Indonesia)
Kristiani, Ninik, Supervisor of High School Education, Education Office of Malang (Indonesia)
Kristiawan, Yudha, SMA Darul Ulum 1 Unggulan BPPT Jombang (Indonesia)
Kristinawati, Enny, SMA Immersion Ponorogo (Indonesia)
Kurniawan, Dody, Pendidikan Biologi–Universitas Negeri Malang (Indonesia)
Kurniawan, Dwi Agus, Faculty of Teaching and Education-Universitas Jambi (Indonesia)
Kurniawan, Nugroho, Faculty of Teaching and Education-Universitas Jambi (Indonesia)
Kusairi, Sentot, Pendidikan Fisika-Universitas Negeri Malang (Indonesia)
Kusairi, Sentot, Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang (Indonesia)
Kusairi, Sentot, Physics Education-Universitas Negeri Malang (Indonesia)
Kustono, Djoko, Pendidikan Kejuruan - Universitas Negeri Malang (Indonesia)
Kusumaningrum, Irma Kartika, Chemistry education-Universitas Negeri Malang (Indonesia)