P. Paryati, “Improving Teacher Competence in Questions on Google Forms Through In House Training (IHT) in the Era of the COVID-19 Pandemic at Candirejo State Elementary School, Kalibawang, Kulon Progo Regency”, Int. J. Chem. Educ. Res., vol. 5, no. 2, pp. 62–68, Oct. 2021.