Tolong jelaskan mengenai Historiografi dari Masa kosong dalam bahasa melayu

Akyeampong, Emmanuel, and Charles Ambler. "Leisure in African history: An introduction." International journal of African historical studies 35#1 (2002): 1-16.

Mommaas, Hans, et al. Leisure research in Europe: methods and traditions (Cab international, 1996), on France, Poland, Netherlands, Spain, Belgium, and the UK.