Family Life Series, Family Life Seminars- Beverly and Tim LaHaye, on 8 Cassettes

Belonged to my Parents and have been stored in a large cabinet of their home office for the last 30+ Years. In Excellent condition and the earliest works published by Tim LaHaye who passed away in July 2016.

These are audio Cassettes featuring 8 Seminars Tim LaHaye and his wife Beverly.
The earliest is a 1968 seminar audiobook and the others, in the 1970's. The last recorded one I could find online as 1976. The others I could find no information on.

Each cassette is both side A and side B of the cassette. I could find no information on this, could not find this for sale anywhere online or otherwise.

The following titles are as follows:
1. How to be Happy Though Married (1968); Dr. Tim LaHaye
2. How to Develop Your Child's Temperament; Beverly LaHaye
3. Overcoming Fear, Anxiety and Worry; Beverly LaHaye
4. Coping with Hostility; Dr. Tim LaHaye
5. Six Keys to Marital Happiness; Dr. Tim LaHaye
6. Why You Act the Way You Do; Dr. Tim LaHaye
7. Spirit-Controlled Family Living; Beverly LaHaye
8. The Act of Marriage (1976); Beverly LaHaye