WULANDARI, Salsa; AGUNG HARTOYO; Y. TOUVAN JUNI SAMODRA; PROCOPIO B. DAFUN JR. The effectiveness of using the conversion ladder on the critical thinking skills of grade III students at Elementary School 36 South Pontianak. Primary: Jurnal Pendidikan Guru Sekolah Dasar, [S. l.], v. 15, n. 1, p. 27–41, 2026. DOI: 10.33578/jpfkip.v15i1.27-41. Disponível em: https://primary.ejournal.unri.ac.id/index.php/JPFKIP/article/view/189. Acesso em: 6 oct. 2026.