Muhammad Habibullah Nur Ihsan, Muhammad Silmy Amjad, Bima Andhika Fernanda, Mohamad Bastomi. Stock Investment Analysis Skills And Understanding Efficient Portfolio. IJERFA [Internet]. 2023 Jan. 30 [cited 2026 Apr. 21];1(2). Available from: https://backupijerfa.afdifaljournal.com/index.php/ijerfa/article/view/29