70 tips mencapai kebahagiaan / 
penyusun: H.M. Yusuf Sinaga LC. 
 - Johor Bahru :  Perniagaan Jahabersa,  2006. 
 - 195 p. ;  22 cm. 
<br/><br/><label>ISBN: </label>9789831709443 (pbk.)   RM11.92 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Happiness -- Religious aspects -- Islam.<br/>Religious life -- Islam.<br/>Islam -- Customs and practices.