www.indie-spoonful.com       https://www.indie-spoonful.com/single-post/2019/04/22/Karl-Sky---%E2%80%9CI%E2%80%99m-Always-Here-For-You%E2%80%9D     

www.pleasepasstheindie.com          https://www.pleasepasstheindie.com/single-post/2019/04/26/Karl-Sky---Free    

www.broadtubemusicchannel.com       https://broadtubemusicchannel.com/2019/05/23/broadtube-music-mag-book-volume-21/ 

 www.amazon.com       https://www.amazon.com/dp/1099689457?ref_=pe_3052080_397514860 

www.indiemusicinterviews.com     https://www.indiemusicinterviews.com/post/karl-sky 

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