Sukarda GP, Supratikta H. The Important of Planning and Step for Prospective Leadership Proper Planning. j.inv dev.Econ.& adm. [Internet]. 1 September 2024 [dikutip 14 November 2026];1(2):200 -27. Tersedia pada: http://ojs.ideanusa.com/index.php/JIDEA/article/view/225