ماخذ: Theory Time Medallion Series - Bronze Level Workbook. This workbook is appropriate for adults and late beginners. Heather Rathnau.
ترجمه: نظریه زمان مدال سری - برنز سطح نظام نامه. This workbook includes 67 pages, 17 Lessons and 6 Fun Sheets. هدر Rathnau.