Handayani Aris Susmiasih, Suandi Sidauruk and Abdul Hadjranul Fatah (2021) “Student Difficulties Understanding the Concept of the Colligative Properties of Solutions in Class XII IPA SMA Negeri in Palangka Raya Academic Year 2018/2019”, GAMAPROIONUKLEUS, 2(2), pp. 95–110. doi: 10.37304/jpmipa.v2i2.5046.