Видео с ютуба Bst Ajantha

BST Practical | Extraction of papain from Papaya Fruit

BST Practical | Spot Test 01 | BST Spot Test

BST Practical | Production of Sauekraut by using Cabbage leaves | Sinhala

BST Practical | Identifying quality of EGG | Candling Machine | Technology | Sinhala Medium

Digital Thermometer | BST Practical | Item Identification 4

Yoghurt

BST Practical | Preparation of Floral Arrangements | Biosystems Technology Sinhala

Potential divider circuit | BST Practical

Grafting | BST Practical | Sinhala Medium

යෝගට් නිශ්පාදනය BST practical

BST Online Class Day 2 | How to use auto level | Surveying and Leveling | BST Practical

BST Practical | Potting a Orchid Plant | Biosystems Technology

BST Practical | Potting of Air Layering branch | Biosystem Technology Sinhala

BST MCQ 17 | BST MCQ Discussion | Question No 17 of 500 | Biosystems Technology - BST

Use of Burette holder in Titration | BST Practical | Biosystems Technology

BST - Soil 13

BST - Soil 4

කිරිවල ආම්ලිකතාවය සෙවීම | Acidity of Milk | BST Sinhala Practicals

BST Practicals | Soap Production | Biosystems Technology

Introduction to BST Spot Test 2020