උසස් පෙළ (දේශීය විෂය නිර්දේශය) – තර්ක ශාස්ත්‍රය

A-Three Higher Education Institute

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

A/L Logic and Scientific Method

Logic and Scientific method

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

A/L Logic

Vidumaga Education Institute - Matale

A/L Science, Arts and Technology Classes

Anora Higher Educational Institute

A/L Logic

A/L Logic and Scientific Method

A/L and O/L Classes

A/L Logic

Sigma Education Institute - Polpithigama

A/L Arts, Commerce, Technology Classes

A/L Logic

Oakland Education Academy - Kurunegala

A/L Logic and Scientific Method

Nexus Academy - Peradeniya

Synergy Academy (Pvt) Ltd

A/L Art, Commerce, Technology, Science, Maths