උසස් පෙළ (දේශීය විෂය නිර්දේශය) – තර්ක ශාස්ත්‍රය

A/L Logic and Scientific Method

A/L Logic and Scientific Method - Online, Sinhala medium

G.C.E. A/L - Logic & Scientific Method (Individual / small group classes)

A-Three Higher Education Institute

A/L and O/L Classes

A/L Logic

A/L Logic and Scientific Method

Sigma Education Institute - Polpithigama

A/L Logic

Vidumaga Education Institute - Matale

Anora Higher Educational Institute

Logic and Scientific method