TikTok (Recurso electrónico) (Título Uniforme)

The ultimate guide to Tiktok, 2020 : p. 8 (TikTok is an app and social channel for sharing amateur videos ; users create, edit, and share 15-second videos with their followers ; the app started in China ; originally called Musical.ly, it was released in 2014 and evolved to become TikTok in 2017)

The unofficial TikTok cookbook, 2021

Wikipedia website, viewed Nov. 25, 2020 (TikTok, known in China as Douyin (Chinese: 抖音; pinyin: Dǒuyīn), is a Chinese video-sharing social networking service owned by ByteDance)