අවකලනය භාවිතය (Differentiation) - 2019 Past Paper Discussion - Combined Maths A/L in Sinhala

Просмотров: 1 | Время: 38:16 | Голосов: +1 +1 | Скачать

Скачать клип අවකලනය භාවිතය (Differentiation) - 2019 Past Paper Discussion - Combined Maths A/L in Sinhala