Healthline. //www.healthline.com/health/fitness-exercise/best-time-to-workout#4
Diakses pada 30 Januari 2020Heart.org. //www.heart.org/en/healthy-living/fitness/fitness-basics/when-is-the-best-time-of-day-to-work-out
Diakses pada 30 Januari 2020
Healthline. //www.healthline.com/health/fitness-exercise/best-time-to-workout#4
Diakses pada 30 Januari 2020Heart.org. //www.heart.org/en/healthy-living/fitness/fitness-basics/when-is-the-best-time-of-day-to-work-out
Diakses pada 30 Januari 2020