The article "Costing: An Introduction: Students' Manual" covers various topics related to cost accounting, including cost and revenue classification, accounting for materials and labor, overhead expenditure, job costing, process costing, joint product and by-product costing, absorption costing, variable costing, cost-volume-profit analysis, decision-making, activity-based costing, capital investment decisions, budgeting, control in the organization, standard costing, variance analysis, and planning and control of stock levels.