Koerniawan, Samuel, and Liliana Dewi. “Implikasi Penerapan Seven Spirit Pada Diri Pebisnis, Terkait Keberlanjutan Bisnis Entrepreneurship”. Jurnal Entrepreneur dan Entrepreneurship 5, no. 1 (July 18, 2017): 11–18. Accessed February 19, 2026. https://ojs.somebut.my.id/index.php/JEE/article/view/382.