Ratunguri, Yusak. “Pembelajaran Berbasis Saintifik Terhadap Sikap Berpikir Ilmiah Mahasiswa Program Studi PGSD Universitas Negeri Manado: Scientific-Based Learning Against Scientific Thinking Attitudes of PGSD Study Program Students, Manado State University”. Pedagogia : Jurnal Pendidikan, vol. 4, no. 1, Feb. 2015, pp. 1-7, doi:10.21070/pedagogia.v4i1.66.