Hall (1944:75) Hall, Robert A. Jr. (1944). "Italian phonemes and orthography". Italica. 21 (2). American Association of Teachers of Italian: 72–82. doi:10.2307/475860. JSTOR475860.
"ro-sheòl". www.faclair.com. Retrieved 1 April 2021.
jstor.org
Hall (1944:75) Hall, Robert A. Jr. (1944). "Italian phonemes and orthography". Italica. 21 (2). American Association of Teachers of Italian: 72–82. doi:10.2307/475860. JSTOR475860.