TY - JOUR T1 - Zone of proximal development (ZPD) as an ability to play in psychotherapy: a theory-building case study of very brief therapy. JO - Psychol Psychother PY - 2014/02/06 AU - Zonzi A AU - Barkham M AU - Hardy GE AU - Llewelyn SP AU - Stiles WB AU - Leiman M ED - DO - DOI: 10.1111/papt.12022 VL - 87 IS - 4 SP - 447 EP - 464 Y2 - 2024/12/22 ER -