2021 August 17, Morit Summers, Big & Bold: Strength Training for the Plus-Size Woman, Human Kinetics, →ISBN, page 147:
... leg day, back day, and core day.
2022 November 24, Kenneth Kollasch, Beating Average: A Story to Extraordinary, WestBow Press, →ISBN:
... leg day, cardio day, core day, chest day, and all the rest! But, have you ever taken a day to workout your tongue? We all know communication is vital to success in anything, and it is literally life or death when it comes to warfare[…]
