Heat of Combustion of Alcohols

1-propanol, 1-butanol, 1-pentanol, 1-hexanol.

What are the literature/ published values of their heats of combustion in kJ/mol. Please provide a source.

Thanks !

Here are the exact datas:

1-propanol: 2021 kJ/mol
1-butanol: 2677 kJ/mol
1-pentanol: 3329 kJ/mol
1-hexanol: 3980 kJ/mol