«Spaghetti Cacio e Pepe Ricetta Originale Romana» [Spaghetti cacio e pepe – the original Roman recipe]. The Foodellers (στα Ιταλικά). Ανακτήθηκε στις 17 Οκτωβρίου 2019. There is an English translation, but it lacks important tips on getting this deceptively simple dish right. Google Translate works well.