HENRICUS; W.Ismanthono. (2019). Learning English Made Easy For A Brighter Career (Cetakan Pertama.). Yogyakarta: Pustaka Referensi.
Dyfyniad Arddull ChicagoHENRICUS; W.Ismanthono. Learning English Made Easy For A Brighter Career. Cetakan Pertama. Yogyakarta: Pustaka Referensi, 2019.
Dyfyniad MLAHENRICUS; W.Ismanthono. Learning English Made Easy For A Brighter Career. Cetakan Pertama. Yogyakarta: Pustaka Referensi, 2019.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.