Author Details

Effendi, Leo Adhar, Universitas Islam Riau, Indonesia

  • Vol 24, No 2 (2020) - Articles
    Developing instrument to increase students' geometry ability based on Van Hiele level integrated with Riau Malay culture
    Abstract  PDF
  • Vol 27, No 1 (2023) - Articles
    Instrument and evaluation of students’ involvement in learning Mathematics in 21-century skills at senior high schools of Riau province
    Abstract  PDF