Barcellos, Lia Rejane Mendes. 《Familiarity, Comfortableness and Predictability of Song As 〈Holding Environment〉 for Mothers of Premature Babies》. Voices: A World Forum for Music Therapy 6, no. 1 (三月 1, 2006). 见于 十月 17, 2026. https://voices.no/index.php/voices/article/view/1693.