Cher has 'Tweeted' that these ABBA Songs may be on a 2nd Covers Album.
I've noticed that she cannot always spell some ABBA Titles. (She may get them right at other times).
I presume that the !?!?!? means that she is unsure of Track 10. (She should really 'get' with Modern Marketing and record 2 versions of her ABBA Albums. One with 10 Tracks and a 'Deluxe' version with 12 to 14 Tracks. This enhances Sales...).
Notice that the Track Lists of the 1st and, (maybe), 2nd Album, are all from the 2 'Mamma Mia!' Films. The only one not is 'Rock Me', so she does seem aware of at least one ABBA Song that has Zero to do with the Films. At one stage she also said that 'My Love, My Life' would be on a 2nd ABBA Album - if she recorded one.