Sulistyowati F, Hartanti S, Widodo SA, Putrianti FG. Critical Thinking Skills in Phlegmatic Students Using Learning Videos. J. Math Educ. Nusant. Wahana Publ. Karya Tulis Ilm. di Bid. Pendidik. Mat. 2022;8(2):119-133. doi:10.29407/jmen.v8i2.18874