“…Research about HOTS have been conducted by researchers in developing textbooks or module based on HOTS (Musfiqi & Jailani, 2014;Nur, 2017), in developing test instruments (Budiman & Jailani, 2014;Hamdi, Suganda, & Hayati, 2018;Julianingsih, Rosidin, & Wahyudi, 2017;Noprinda & Soleh, 2019;Ahmad et al, 2017), in Mathematics (Nisa & Retnawati, 2018;Tanujaya, Mumu, & Margono, 2017), in analyzing students' HOT (Shidiq, Masykuri, & Susanti, 2015), in teachers' understanding and practices about HOTS (Driana & Ernawati, 2019;Retnawati et al, 2018;Siti, 2015), in the relationship between HOTS and Japanese language classes (Toyoda, 2016). Some researchers have also researched improving and developing students' HOTS (Baguma et al, 2019;Jerome, Lee, & Ting, 2017;Mulyaningsih & Itaristanti, 2018;Arum, Sudarmi, & Pattiserlihun, 2019;Suryamiati, Pasah, & Eka, 2019;Wahid & Karimah, 2018;Widodo & Kadarwati, 2013;Zulfin et al, 2018).…”