I can remember this, vaguely, from way back. I never heard of anybody soliciting for such referrals or getting another study in that way though.
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km 11/73 p. 5 Can You, Too, Share in the Joy of Disciple-making? ***Asking persons with whom you study for suggestions as to others who might be interested is another fine way of obtaining Bible studies. A circuit overseer relates the following experience of a sister in Massachusetts: "The sister started a study and out of this four additional studies were started which she turned over to other publishers. From these five studies twenty people are now serving Jehovah. Then the same sister started another study. After a while she encouraged the interested person to invite others. This, too, resulted in an additional four studies. On my last visit to that congregation twenty-six people were attending meetings from this last group of studies." Thus through referrals two studies grew to ten and forty-six people got started on the road to everlasting life. Have you explored this avenue of finding Bible studies? Why not try it?