Apsabra, A.; Karyanti, K. Efektivitas Teknik Problem Solving Untuk Menurunkan Perilaku Prokrastinasi Akademik Peserta Didik Kelas X IIS 3 SMAN-1 Palangka Raya: The Effectiveness of Problem Solving Techniques to Reduce Academic Procrastination Behavior of Students in IIS 3 Class X-1 Palangka Raya. Suluh J Bimbingan Konseling 2018, 4, 8-12.