Barida M, Nurchairunnissa G, Saputra WNE, Setyowati A, Ediyanto E, Atmoko A. Effectiveness of Group Guidance with Group Investigation Learning Model to Develop Students’ Assertiveness. J. Kaji. Bimbing. dan Konseling [Internet]. 2024 Jun. 14 [cited 2024 Nov. 7];9(1):18-25. Available from: https://journal-fip.um.ac.id/index.php/jkbk/article/view/149