Kruk, Mariusz, Mirosław Pawlak, Tahereh Taherian, Erkan Yüce, Majid Elahi Shirvan, and Elyas Barabadi. 2023. “When Time Matters: Mechanisms of Change in a Mediational Model of Foreign Language Playfulness and L2 learners’ Emotions Using Latent Change Score Mediation Model”. Studies in Second Language Learning and Teaching 13 (1):39-69. https://doi.org/10.14746/ssllt.37174.