Yelvianti T. PENGEMBANGAN ALTERNATIF PEMECAHAN MASALAH. COMMU SERV ENGAG EMPOR [Internet]. 2023 Jun. 30 [cited 2026 Jun. 28];1(1):204-9. Available from: https://conferences.lppmbinabangsa.ac.id/index.php/seumpama/article/view/24