I was told not to tell you! Because that will not be a "likas na yaman". 
"Likas na yaman" means those that you acquired yourself through hard work and labor - in a most honest and truthful ways! 
Suggestions: Use the Britannica Encyclopedia from any library, or any encyclopedia for that purpose and you will surely find what you are looking for, those likas na yaman. It could mean a lot of hard work and labor - but it your own acquired riches in a an honest and faithful way! Cheer up!