Simatupang, Sudung, Fadly Eka Aldiansah, Herliana Maharani Manurung, Hendrick Sasimtan Putra, and Kevin Indajang. 2026. “Power Nap: The Secret Of A Simple 20-Minute Investment That Supports Employee Work Productivity”. International Journal of Economics, Business and Innovation Research 5 (02), 533-44. https://doi.org/10.63922/ijebir.v5i02.3056.